Seattle / Tacoma (SEA) to Oslo (OSL) flight deal in economy from $319

BABritish Airways

One Way•Economy

SEA

Seattle–Tacoma International Airport

Seattle / Tacoma, United States

OSL

Oslo Airport, Gardermoen

Oslo, Norway

$503 USD

-37%$319 USD

Verified about 19 hours ago

December 2026

Today

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30$3221$3222$3223$3224$3225$3226$3227$3228$3229$32210$32211$32212$32213$32214$35215$35216$63317$41718$93619$83120$76121$41722$41723$76124$69125$63526$63527$58528$58529$32230$58531$3221$6352$6353$585

Good Availability

46% of dates checked are available within 10% of the lowest price

Monday, December 14th, 2026

Outbound Flights

14h 50m·1 stop

$352 USD

SEADec 14 18:50

→

LHRDec 15 12:20

BA 48Boeing 787-10

3h 5m layover

LHRDec 15 15:25

→

OSLDec 15 18:40

BA 772Airbus A319

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