Oslo (OSL) to Philadelphia (PHL) cheap flight deal from $455 USD in economy class – flightdeals.net

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American Airlines

AAAmerican Airlines

Finnair

British Airways

BABritish Airways

Round Trip•Economy

Oslo Airport, Gardermoen

Philadelphia International Airport

Philadelphia, United States

$642 USD

-29%$455 USD

Verified Sep 21, 2025 at 2:10 PM

September 2025

Mon

Tue

Wed

Thu

Fri

Sat

Sun

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21$823 22$717 23$717 24$717 25$874 26$1,446 27$1,624 28$1,171 29$1,016 30$1,011 1$971 2$717 3$471 4$816 5$884

Good Availability

52% of dates checked are available within 10% of the lowest price

Monday, September 22nd, 2025

3 round-trip options

Returning

Sat, Sep 27, 2025•5 Day Trip

$717 USD

Returning

Sun, Sep 28, 2025•6 Day Trip

$717 USD

Returning

Mon, Sep 29, 2025•7 Day Trip

$816 USD