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Find cheap flights to Seaside from $39

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to Seaside departing on 6/18. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
0 bags
sáb 6/29
sáb 7/6

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Good to know

Low season

January

High season

July

Cheapest flight

$39
Best time to beat the crowds with an average 12% drop in price.
Most popular time to fly with an average 17% increase in price.
Flight from Ontario to Portland

FAQs - booking Seaside flights

  • How long is the flight to Seaside?

    Flights from Phoenix2h 43m
    Flights from Chicago4h 14m
    Flights from San Francisco1h 46m
    Flights from Denver2h 39m
    Flights from Los Angeles2h 27m
  • What is the cheapest flight to Portland?

    The flight route San Francisco to Portland was the most popular route on KAYAK over the last 3 days. A return flight could be found for $58. Also in the last 3 days, Ontario was the most budget-friendly place to find a flight to Portland with one-way tickets at $39 and $58 round-trip.

  • Which airlines fly to Portland?

    Alaska Airlines, Delta, and Southwest are commonly used to fly to Portland from United States. See the amount of flights per week for popular airlines flying to Portland.

  • How to fly to Seaside?

    You cannot fly directly to Seaside. KAYAK recommends you fly to Portland (PDX) (69.8 miles from Seaside). From there you can rent a car or get a taxi.

  • What airports are near Seaside?

    The closest airport is Portland (PDX) (69.8 mi). KAYAK recommends you fly to Portland.

  • How far is Portland from central Portland?

    There are 6 miles between Portland city center and Portland.

  • What is the name of Portland’s airport?

    There is only 1 airport in Portland, called Portland (PDX). It can also be referred to as Portland or Portland Intl.

  • How does KAYAK find such low prices on flights to Seaside?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights to Seaside.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket to Seaside?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Seaside is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights to Seaside?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Seaside with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight to Seaside?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Seaside up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top tips for finding cheap flights to Seaside

  • There is no major airport in Seaside. It is instead served by Portland Airport.
  • Enter your preferred departure airport and travel dates into the search form above to unlock the latest Seaside flight deals.

Top 5 airlines flying to Seaside

 
Need help choosing which airline to fly with from the United States to Seaside? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
Alaska AirlinesOverall score based on 9192 reviews
7.9Comfort
7.3Entertainment
7.3Food
8.2Boarding
8.6Crew
Airline reviews

Easy and quick boarding. A bit of a hard landing at PDX

10.0 ExcellentAnonymous, May 2024GEG - PDX
Read more about Alaska Airlines reviews

Easy and quick boarding. A bit of a hard landing at PDX

I think u could offer more than apple juice or water.

Pleasant crew and on time travel. It was all good.

It was ok. Alaska was adequate. Efficient and what I paid for it was fair. The boarding area at the gate was a joke. By the time they get past the C boarding group people all line up impatiently and then it’s chaos. We were boarding early then we sat on the tarmac for 30 minutes. I would of rather sat in the airport.

The entire flight was terrible. I recently had neurocervical surgery, and I needed a wheelchair to get to the gate. They were wonderful, truly. The flight staff was lovely, as well. Despite the need for assistance, I was put in the middle seat in the last row in front of the toilets. It was "policy" that I couldn't be moved. The pain I felt after the flight was astromnomical. The flight was so WARM, I was sweating, and the "air" did nothing to the stuffy feeling. The seats were uncomfortable, the plane itself was in bad/worn condition (although very clean - thanks to the staff) - and the flight was definitely rocky (not the pilot's fault, of course). All in all - one of the worst flights I've ever taken. The humans were wonderful!! You have a really great team. But your flight policies and your plane are absymal. For what you charge, you need to upgrade your plane and your policies.

First flights on Alaska Air, and I will go out of my way to fly them whenever I can in the future. An incredible experience, above and beyond any other airline.

Alway a a breeze! And great mountain views on left side of plane during entire flight!

No entertainment, food was cookies & juice,water, soda or coffee.

The seats were incredibly small and the attendants were grumpy the whole time.

It was a tiny plane … even though I paid for upgrade, no internet… no plug ins, no entertainment… 👎🏻

Flew first class so everything was great. But maybe because the flights were red eye, no meals were served, just chips. I flew Alaska Air 1st class at 9PM (2 hour flight) and they served beef short rib sliders!

Had to change aircraft due to a faulty door. Surprisingly it only caused about an hour and a half of delay. Delta handled this situation as well as can be expected.

Awful. Flight was continuously getting delayed and gates kept changing without any reason. Flight was delayed for more then 3 hours

Paid premium for Delta only to be on safe but tired old 767 with ancient cabin in mediocre condition. Poor wifi and horrible inflight entertainment. Hardly a premium experience. Should have flown SW and had fun flight crew and no pretense

Our flight to Zurich was delayed by almost 3 hours, so we missed our next flight. There was no indication it would be delayed this much. We were told the gate had changed and then it apparently took over 2 hours to load the "catering" on the plane. We were not compensated in any way for the trouble.

Rated entertainment as Mediocre as there were major problems with the Infotainment system that took probably a half hour for them to fix.

Your crew could maybe answer the call bell at least one of the times I pressed it. I pressed it first time with 2.5 hours left in our flight bc my partner was hungry and wanted a sandwich. We finally got the sandwich with 40 mins left in the flight.

Delta crushed it. Flight attendant in first was attentive and just never stopped. Honestly one of the best domestic flights I’ve been on.

They were an hour late and they didn’t have my wheelchair for me

The Flight crew didn’t serve us until about 1.5 hours into the flight because of turbulence but after it ended it was fine to move around. They served us water only and snacks and then NEVER, NOT ONE TIME came through to collect trash until right before landing about 1.5 hours later. There was absolutely no need for that. They crew was just standing around talking and visiting with each other and really never tried to see if we might want something besides water or even try to come pick up trash. This is VERY unusual for a Delta flight but it was not what I would have expected for a 4 hour flight.

The flight and boarding were easy peasy. I was traveling with my 4-year-old, so a smooth boarding experience was especially appreciated. My only piece of feedback is really about where our gate was in O'Hare. They've shoved four gates into a tiny corner of the B terminal and there isn't early enough room or seating for everyone. Not United's problem, but did dent the overall experience.

Dinner was okay but the breakfast was not eatable on the flight San Francisco to Zurich.

There was no screens on board AND the WiFi didn’t work. My seat was broken and couldn’t recline so I couldn’t even sleep. The flight attendants didn’t offer anything to make it more comfortable. It was such an old cramped plane, when the person in front of me reclined I couldn’t even open my tray table. All the United ads talk about guaranteeing everyone gets a screen!

The Wi-Fi was unavailable on this flight for some reason.

On time take off…US cabins look tired and need of refresh!

Fantastic. Smooth boarding with an infant. Never experienced it with any other carriers.

This was a Lufthansa flight, not United. The CSA at the counter, Ashley, was not only incompetent, but quite rude. Me and two other PAX waited over 7 minutes standing in front of her and another CSA and they ignored us. We joked that we must have accidently taken invisibility pills. She could have at least said "I'll be with you in a moment, I'm currently....". I could go on about how rude she and the other CSAs were (whispering, not communicating with me, blaming the situation on others, etc.). She would not work for me. Then, she gave me literally the worst seat on the plane. the worst. My seat kept getting bumped (rammed twice by the crew with their carts and about every 5 minutes by someone using the bathroom), listening to the bathroom all night, crowded seat, etc.

My seat was broken. WiFi didn’t work. Gate crew at HOU were rude and condescending. Treated all the passengers badly. Bad experience, United.

First flight of the day… MINIMUM FUEL! 15 minute landing delay at HOU due to fog turned into a 2+ hour delay! Rather than circle, they had to divert to another city to refuel! Sat on tarmac at Austin to refuel. We ALL missed our connections! The crew, including pilots, were clueless. Crew was really a mess. At HOU, Untied employees were exceedingly rude to all. It was pitiful.

An hour and a half late is UNACCEPTABLE. The negative impact to our family is unconscionable. And for the price we were forced to pay...

The boarding process and flight were great. However, I waited about 40 minutes for my luggage. It did not come up on the designated belt. Instead, everyone’s bags were on a cart. Not sure what the issue was, but we were not informed until another passenger went looking for her bags and found them.

There were delays on both ends. It made it less than excellent. This plane was great though

AA1537 the AC was not working properly. It was very hot and uncomfortable.

Worst experience flying American Airlines. I fly with them often, so I was super disappointed in the service I received at gate 30 in LGA on May 24, mid-day. The flight was delayed twice. I was patiently waiting in the American Airlines lounge when I received the notice on my app that the plane was boarding 45 minutes before its newly re-scheduled take off of 4 pm (from the orginal 1:45 pm then 3:00 pm). It took me 5 min to travel from the lounge to the gate and when I arrived there at 3:20 flight gate attendant told me the flight had closed and that they announced for passengers multiple times. I showed them the notification on my app and they were really rude and unempathetic. The person who rescheduled my flight at customer service wasn't any happier but was at least helpful in getting me on the next flight.

Flight was 1/2 hour delayed leaving Phoenix. Otherwise it was an average flight. Flight crew on this trip was very nice.

Everything was great except for the wifi was junk. Crew was super friendly and helpful

Was lucky to have a employee at the AA checkin counter that had compassion and understood they ordeal that we went through with our original flight being diverted, needing to stay in the aircraft and then flying to the original destination; adding hours to the trip and forcing us to miss our connection and our rebooked connection. She was able to get up on standby on the highest priority on the next flight to the closest airport we need to be at and it all worked out despite being many hours late.

Delayed so that missed connecting flight. Connecting flight was also delayed on the tarmac but they closed the gate before the rescheduled time.

Attendants were rude. Scowling. Seats were miserable and we paid extra.

Took off over an hour late with multiple mechanical issues. Gate agent in Dallas was lazy and was slow as molasses. Had a line 10 people long. Spirit bad..

I am very disappointed with Frontier Airlines. They cancelled our flight because they couldn't find a crew member, and then didn't get us to our connecting flight. We had to cancel our whole vacation. We were promised flight and hotel vouchers, but they never sent them.

9hrs delay and didn’t provided anything until after flight landed $75 voucher for fiuture travel no meals or anything.

It was ridiculously hard to check in for the flight, and Frontier charged us a LOT of money to have a carry on suitcase, and then told everyone we could not carry on bags and had to check them through at the gate, and didn't refund the extra money we paid to have the suitcase as carry on.

I had a terrible experience with Frontier. I arrived before the 60 minute cut off and was told that Frontier has a two hour window for bags. I was then told the next available flight wasn’t until the end of the day (I had booked a 6am flight). I took a look around and saw other people being told that they could not board their flights or that they had to pay additional fees. I opted to rebook on American Airlines. There’s absolutely no straightforward way to contact Frontier, so this ticket was a complete waste of money. Oh - and the kicker is that the lady lied about the two hour cut off.

Frontier won’t help you at the airport without paying $25. Carry on was $75. Then you get on the plain and every beverage or snack is also a charge. Seats are hard and real packed in. I would never fly them again.

Worst experience I have seen. The flight was cancelled without any reason.

My experience with frontier staff at the Denver airport was absolutely horrible. The manager on duty was even worst if was the worst experience I have ever had, I have never been treated so poorly as a customer in my life! The staff was extremely rude, eye rolls and attitude and then refusal to help me at all. I wish I could never fly frontier again that’s how horrible it was!

The Frontier app wasn’t working. So I could not pay for a carry on the week prior to flying. They charged me 99$ at the gate to carry on a duffle bag.

Good for the price. My only complaint is that the pilot should keep the air flowing while passengers are waiting to getting out of airplane.

Plane could have been more on time. More leg room .

Book Cheap Seaside Plane Tickets

Recent round-trip flight deals

6/11ter
nonstopFrontier
1h 45mSFO-PDX
6/12qua
nonstopFrontier
1h 47mPDX-SFO
$58
6/19qua
nonstopFrontier
1h 45mSFO-PDX
6/26qua
nonstopFrontier
1h 47mPDX-SFO
$59
7/6sáb
nonstopAlaska Airlines
1h 42mSFO-PDX
7/6sáb
nonstopAlaska Airlines
1h 52mPDX-SFO
$157
7/2ter
nonstopAlaska Airlines
1h 42mSFO-PDX
7/6sáb
nonstopAlaska Airlines
1h 52mPDX-SFO
$167
7/10qua
1 stopDelta
3h 47mSFO-PDX
7/13sáb
1 stopDelta
6h 12mPDX-SFO
$176
6/19qua
nonstopDelta
2h 23mLAX-PDX
6/22sáb
nonstopDelta
2h 32mPDX-LAX
$177
8/27ter
nonstopUnited Airlines
5h 53mEWR-PDX
9/10ter
nonstopUnited Airlines
5h 14mPDX-EWR
$237
8/27ter
nonstopUnited Airlines
5h 53mEWR-PDX
9/10ter
2 stopsUnited Airlines
10h 01mPDX-EWR
$247
8/15qui
1 stopAmerican Airlines
8h 29mLGA-PDX
8/20ter
1 stopAmerican Airlines
7h 06mPDX-LGA
$261
8/23sex
1 stopAmerican Airlines
8h 31mLGA-PDX
9/3ter
1 stopAmerican Airlines
8h 17mPDX-LGA
$266

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Recent one-way flight deals

6/18ter
nonstopFrontier
2h 15mONT-PDX
$39
6/12qua
nonstopSpirit Airlines
2h 13mBUR-PDX
$41
6/25ter
1 stopDelta
4h 51mSFO-PDX
$88
6/26qua
nonstopAlaska Airlines
2h 21mLAX-PDX
$89
6/5qua
1 stopDelta
4h 35mSFO-PDX
$92
6/30dom
nonstopUnited Airlines
1h 46mSFO-PDX
$95
8/25dom
nonstopAlaska Airlines
2h 21mONT-PDX
$99
8/3sáb
nonstopUnited Airlines
1h 46mSFO-PDX
$114
10/1ter
1 stopAmerican Airlines
9h 44mEWR-PDX
$128
10/1ter
1 stopAmerican Airlines
9h 13mJFK-PDX
$137

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Last minute flights to Seaside

Last minute flight, train and bus deals

6/4ter
nonstopFrontier
2h 20mONT-PDX
6/12qua
nonstopFrontier
2h 15mPDX-ONT
$76
6/4ter
nonstopFrontier
1h 48mSFO-PDX
6/7sex
nonstopFrontier
1h 47mPDX-SFO
$78
6/4ter
multi-stopDelta
4h 35mSFO-PDX
6/7sex
multi-stopDelta
4h 17mPDX-SFO
$186
6/1sáb
multi-stopDelta
4h 50mSFO-PDX
6/4ter
multi-stopDelta
6h 44mPDX-SFO
$281
6/1sáb
multi-stopUnited Airlines
5h 07mONT-PDX
6/3seg
multi-stopUnited Airlines
6h 33mPDX-ONT
$290
6/4ter
nonstopAlaska Airlines
1h 48mSFO-PDX
6/4ter
nonstopAlaska Airlines
1h 49mPDX-SFO
$351
6/1sáb
nonstopAlaska Airlines
1h 47mSFO-PDX
6/1sáb
nonstopAlaska Airlines
1h 45mPDX-SFO
$357
6/4ter
multi-stopUnited Airlines
3h 52mONT-PDX
6/4ter
multi-stopUnited Airlines
6h 33mPDX-ONT
$360
5/31sex
multi-stopAmerican Airlines
11h 14mEWR-PDX
7/4qui
multi-stopAmerican Airlines
7h 09mPDX-EWR
$389
5/31sex
multi-stopAmerican Airlines
12h 04mEWR-PDX
7/4qui
multi-stopAmerican Airlines
7h 09mPDX-EWR
$393

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