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GTF - IAD

$443 Find cheap flights from Great Falls to Washington Dulles Airport

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Great Falls to Dulles Intl departing on 6/11. 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
Sat 6/29
Sat 7/6

Search hundreds of travel sites at once for deals on flights to Washington Dulles Airport

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Great Falls to Washington, D.C., as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Great Falls to Washington, D.C., as well as popular online travel agencies
In the last 7 days travelers have searched 42,686,544 times on KAYAK, and here is why:

Save 21% or moreCompare multiple travel sites with one search.

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Filter your dealsChoose cabin class, free Wi-Fi and more.

Bundle and saveSave money when you bundle your flight + hotel.

Cheap flight deals from Great Falls to Dulles Intl (GTF-IAD)

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Great Falls to Dulles Intl that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
6:00 am - 9:30 pmGTF-IAD
13h 30m2 stops
7:02 am - 3:08 pmIAD-GTF
10h 06m1 stop
$465Alaska Airlines
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Wed, Oct 9 - Sat, Oct 19
3:48 pm - 3:07 pmGTF-IAD
21h 19m1 stop
7:02 am - 3:08 pmIAD-GTF
10h 06m1 stop
$500Alaska Airlines
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Wed, Oct 9 - Sat, Oct 19
7:00 am - 11:26 amGTF-IAD
26h 26m1 stop
2:20 pm - 9:18 pmIAD-GTF
8h 58m1 stop
$532United Airlines
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Tue, Jul 9 - Sat, Jul 13
7:00 am - 12:30 amGTF-IAD
15h 30m2 stops
2:20 pm - 9:18 pmIAD-GTF
8h 58m1 stop
$557United Airlines
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Tue, Jul 9 - Sat, Jul 13
7:02 am - 11:59 pmGTF-IAD
14h 57m1 stop
7:02 am - 11:59 pmIAD-GTF
18h 57m1 stop
$572Alaska Airlines
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Fri, Aug 16 - Sun, Aug 18
6:00 am - 9:30 pmGTF-IAD
13h 30m2 stops
9:00 am - 11:59 pmIAD-GTF
16h 59m2 stops
$588Alaska Airlines
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Wed, Oct 9 - Sat, Oct 19
2:17 pm - 5:25 amGTF-IAD
13h 08m1 stop
8:15 pm - 9:03 pmIAD-GTF
26h 48m1 stop
$597United Airlines
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Fri, Jun 21 - Mon, Jun 24
6:45 am - 12:47 amGTF-IAD
16h 02m2 stops
10:08 pm - 9:03 pmIAD-GTF
24h 55m1 stop
$602United Airlines
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Fri, Jun 21 - Mon, Jun 24
7:00 am - 12:30 amGTF-IAD
15h 30m2 stops
8:30 am - 9:18 pmIAD-GTF
14h 48m2 stops
$611United Airlines
Find Deal
Tue, Jul 9 - Sat, Jul 13
6:45 am - 12:47 amGTF-IAD
16h 02m2 stops
10:40 pm - 1:18 pmIAD-GTF
16h 38m2 stops
$679United Airlines
Find Deal
Fri, Jun 21 - Mon, Jun 24

Flights from Great Falls to Dulles Intl - Travel Insights & Trends

Get data-powered insights and trends into flights from Great Falls to Dulles Intl to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from Great Falls to Washington Dulles Airport?

The average price of all flights from Great Falls to Washington, D.C. Dulles Intl Airport clicked on KAYAK for each day over the last 12 months.
When flying from Great Falls to Washington Dulles Airport, you should consider leaving on a Tuesday and avoid Fridays if you are looking for the best rates. For your return to Great Falls, you’ll find the best rates on Mondays and the most expensive ones on Sundays.

Which airlines provide the cheapest flights from Great Falls to Washington Dulles Airport?

The cheapest price for the route for each airline clicked by KAYAK users in the last 72 hours.
The best deals for a one-way ticket found by KAYAK users over the last 3 days were on Alaska Airlines ($443) and United Airlines ($478). The cheapest round-trip tickets were found on Alaska Airlines ($465) and United Airlines ($532).

Good to know

High season

April

Cheapest flight

$443
Most popular time to fly and prices are also 2% lower on average.
Flight from Great Falls to Washington Dulles Airport

When to book flights from Great Falls to Dulles Intl

Are your dates flexible? Find out the best times to travel from Great Falls to Dulles Intl based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Great Falls to Washington Dulles Airport flights

  • What is the cheapest flight from Great Falls to Washington, D.C. Dulles Intl Airport?

    In the last 3 days, the lowest price for a flight from Great Falls to Washington, D.C. Dulles Intl Airport was $443 for a one-way ticket and $465 for a round-trip.

  • Do I need a passport to fly between Great Falls and Washington Dulles Airport?

    A passport is not required to fly from Great Falls to Washington Dulles Airport.

  • Which airports will I be using when flying from Great Falls to Washington Dulles Airport?

    When flying out of Great Falls you will be using Great Falls. You will be landing at Washington Dulles Airport, also known as Washington, D.C. Dulles Intl.

  • Which aircraft models fly most regularly from Great Falls to Washington Dulles Airport?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Great Falls to Washington Dulles Airport?

    oneworld, and Star Alliance are the airline alliances operating flights between Great Falls and Washington Dulles Airport, with oneworld being the most commonly used for this route.

  • How does KAYAK find such low prices on flights from Great Falls to Washington Dulles Airport?

    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 from Great Falls to Washington Dulles Airport.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Great Falls to Washington Dulles Airport?

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

  • What is the Hacker Fare option on flights from Great Falls to Washington Dulles Airport?

    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 Washington Dulles Airport with an airline and back to Great Falls with another airline. Booking your flights between Great Falls and IAD can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Great Falls to Washington Dulles Airport?

    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 Washington Dulles Airport from Great Falls up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top airlines flying from Great Falls to Dulles Intl

 
See real verified KAYAK customer reviews for airlines flying from Great Falls to Washington, D.C.. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Great Falls to Dulles Intl? 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
DeltaOverall score based on 10457 reviews
7.9Comfort
8.6Crew
8.2Boarding
8.0Entertainment
7.4Food
Airline reviews

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!

10.0 ExcellentMichael, May 2024SJC - ATL
Read more about Delta reviews

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.

All flights were on time and boarding was issue free

Water service would be great. The way they board is terrible. Slow passengers first😂😂 They need to smart up a bit

It got me where I needed it to; not much more. It had no competition so that was why I chose it.

Plane didn’t even make it off the ground. We all had to get off and walk to a different terminal (lots of confusion) to get on a different plane. Landed fairly late, connections missed.

Crowded flight, but upbeat and kind crew. Pilot greeted us at door, flight attendant thanked a number of “special” passengers for their business, another addressed an eight-year old boy as “young man.” United obviously trying to up their game, but though all of that is nice and notable, flying still feels like moving along a human assembly line, being herded into one small space after another (boarding areas with too few seats, planes with limited personal space, shuttles (IAD) packed too full.

It was ok until we got to DC and I wanted to use my United Club pass and the snobbish receptionist said that they don’t take one pass. It took me everything itch of patience not to tell her off

Food choice was poor and we had to buy on board snacks.

We were offer chocolate cookies , not everyone eat chocolate. Thank you

Lost luggage again. Our second trip to Mykonos, and 2nd time no luggage.

Flight was well orchestrated, made up time despite circling a bit all good on United. Travelers can just be so into themselves that common courtesy has gone out window for some, but that’s not on United.

Book cheap flights from Great Falls to Washington, D.C.

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from Great Falls to Washington, D.C. found on KAYAK in the last 72 hours.
6/11Tue
1 stopAlaska Airlines
29h 53mGTF-IAD
$443
6/11Tue
2 stopsUnited Airlines
13h 44mGTF-IAD
$478
6/11Tue
3 stopsUnited Airlines
12h 17mGTF-IAD
$783

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Last minute flights from Great Falls to Dulles Intl

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights from Great Falls to Washington, D.C. that are departing in the next 10 days.
5/31Fri
multi-stopUnited Airlines
28h 48mGTF-IAD
6/2Sun
multi-stopUnited Airlines
14h 03mIAD-GTF
$1,018
5/31Fri
multi-stopUnited Airlines
28h 48mGTF-IAD
6/2Sun
multi-stopUnited Airlines
6h 53mIAD-GTF
$1,108
5/31Fri
multi-stopUnited Airlines
12h 17mGTF-IAD
6/2Sun
multi-stopUnited Airlines
14h 03mIAD-GTF
$1,186
5/31Fri
multi-stopDelta
8h 17mGTF-IAD
6/2Sun
multi-stopDelta
7h 03mIAD-GTF
$1,218

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Great Falls - Washington Dulles Airport Flights

Departure:

Great Falls (GTF)United States

Destination:

Washington Dulles Airport (IAD)United States

Return flight deals:

Washington Dulles Airport - Great Falls

Cabin classes: