Recent round-trip flight deals
8/13Tue
1 stopSWISS
13h 20mBOS-OPO
9/3Tue
1 stopSWISS
16h 25mOPO-BOS
8/13Tue
2 stopsSWISS
15h 35mBOS-OPO
9/3Tue
1 stopSWISS
16h 25mOPO-BOS
11/27Wed
1 stopSWISS
17h 50mMIA-OPO
12/8Sun
1 stopSWISS
24h 15mOPO-MIA
9/24Tue
1 stopVueling
17h 20mBOS-OPO
10/9Wed
1 stopVueling
28h 15mOPO-BOS
8/28Wed
1 stopBritish Airways
30h 50mSFO-OPO
9/11Wed
2 stopsBritish Airways
20h 36mOPO-SFO
11/7Thu
1 stopTAP AIR PORTUGAL
12h 25mMIA-OPO
11/16Sat
1 stopTAP AIR PORTUGAL
12h 50mOPO-MIA
10/18Fri
1 stopVueling
17h 20mBOS-OPO
10/22Tue
1 stopVueling
28h 15mOPO-BOS
10/29Tue
1 stopVueling
17h 55mLAX-OPO
11/6Wed
1 stopVueling
27h 45mOPO-LAX
7/7Sun
1 stop
27h 00mSFO-OPO
7/18Thu
2 stops
31h 25mOPO-SFO
11/6Wed
1 stopUnited Airlines
16h 35mDEN-OPO
11/20Wed
2 stopsUnited Airlines
53h 36mOPO-DEN