Seattle (SEA) to Philadelphia (PHL), Jan 21, 2027: round trips from $347, one way from $181

Seattle (SEA) to Philadelphia (PHL), Jan 21, 2027: round trips from $347, one way from $181 on Axel, checked Nov 10, 2026. Lowest published fares: $347 round trip, Axel-exclusive, Southwest Airlines, 1 stop, Jan 21–22, 2027; $181 one way, Axel-exclusive, Southwest Airlines, 1 stop, Jan 21, 2027; 1 adult, economy, checked Nov 10, 2026. Flights for 1 adult in economy. Prices are total for all travelers in USD, including required taxes. Basic economy may apply.

Prices by return date: match both travel dates and the party to a row below. Each total is for that exact trip, labelled with the check date shown.

Date links open published trip details for exploration. Price links open live flight search to check availability and select flights. For a price comparison, use the amounts and check dates already shown here.

Exact travel dates Airline Flights Times, duration, stops Total price Price checked
2027-01-21 · one way Alaska Airlines AS442 08:32:00→16:45:00 5h 13m nonstop Axel-exclusive $194.75 Nov 10, 2026
2027-01-21 · one way Southwest Airlines WN1550 + WN1623 06:30:00→16:30:00 7h 00m 1 stop via MDW Axel-exclusive $180.50 Nov 10, 2026
2027-01-21 → 2027-01-22 Alaska Airlines AS442 / AS370 08:32:00→16:45:00 5h 13m nonstop · 07:02:00→10:29:00 6h 27m nonstop Axel-exclusive $375.26 Nov 10, 2026
2027-01-21 → 2027-01-22 Southwest Airlines WN1550 + WN1623 / WN1270 + WN3141 06:30:00→16:30:00 7h 00m 1 stop via MDW · 17:15:00→22:50:00 8h 35m 1 stop via DEN Axel-exclusive $346.76 Nov 10, 2026
2027-01-21 → 2027-01-23 Alaska Airlines AS442 / AS370 08:32:00→16:45:00 5h 13m nonstop · 07:02:00→10:29:00 6h 27m nonstop Axel-exclusive $375.26 Nov 10, 2026
2027-01-21 → 2027-01-23 Southwest Airlines WN1550 + WN1623 / WN1270 + WN3141 06:30:00→16:30:00 7h 00m 1 stop via MDW · 17:15:00→22:50:00 8h 35m 1 stop via DEN Axel-exclusive $346.76 Nov 10, 2026
2027-01-21 → 2027-01-24 Alaska Airlines AS442 / AS370 08:32:00→16:45:00 5h 13m nonstop · 07:02:00→10:29:00 6h 27m nonstop Axel-exclusive $375.26 Nov 10, 2026
2027-01-21 → 2027-01-24 Southwest Airlines WN1550 + WN1623 / WN1270 + WN3141 06:30:00→16:30:00 7h 00m 1 stop via MDW · 17:15:00→22:50:00 8h 35m 1 stop via DEN Axel-exclusive $346.76 Nov 10, 2026
2027-01-21 → 2027-01-25 Alaska Airlines AS442 / AS370 08:32:00→16:45:00 5h 13m nonstop · 07:00:00→10:28:00 6h 28m nonstop Axel-exclusive $375.26 Nov 10, 2026
2027-01-21 → 2027-01-25 Southwest Airlines WN1550 + WN1623 / WN1270 + WN3141 06:30:00→16:30:00 7h 00m 1 stop via MDW · 17:15:00→22:50:00 8h 35m 1 stop via DEN Axel-exclusive $346.76 Nov 10, 2026
2027-01-21 → 2027-01-26 Alaska Airlines AS442 / AS443 08:32:00→16:45:00 5h 13m nonstop · 18:11:00→21:53:00 6h 42m nonstop Axel-exclusive $375.26 Nov 10, 2026
2027-01-21 → 2027-01-26 Southwest Airlines WN1550 + WN1623 / WN1270 + WN3141 06:30:00→16:30:00 7h 00m 1 stop via MDW · 17:15:00→22:50:00 8h 35m 1 stop via DEN Axel-exclusive $346.76 Nov 10, 2026
2027-01-21 → 2027-01-27 Alaska Airlines AS442 / AS370 08:32:00→16:45:00 5h 13m nonstop · 07:00:00→10:28:00 6h 28m nonstop Axel-exclusive $375.26 Nov 10, 2026
2027-01-21 → 2027-01-27 Southwest Airlines WN1550 + WN1623 / WN1270 + WN3141 06:30:00→16:30:00 7h 00m 1 stop via MDW · 17:15:00→22:50:00 8h 35m 1 stop via DEN Axel-exclusive $346.76 Nov 10, 2026
2027-01-21 → 2027-01-28 Alaska Airlines AS442 / AS443 08:32:00→16:45:00 5h 13m nonstop · 18:11:00→21:53:00 6h 42m nonstop Axel-exclusive $375.26 Nov 10, 2026
2027-01-21 → 2027-01-28 Southwest Airlines WN1550 + WN1623 / WN1270 + WN3141 06:30:00→16:30:00 7h 00m 1 stop via MDW · 17:15:00→22:50:00 8h 35m 1 stop via DEN Axel-exclusive $346.76 Nov 10, 2026
2027-01-21 → 2027-01-29 Alaska Airlines AS442 / AS370 08:32:00→16:45:00 5h 13m nonstop · 07:02:00→10:29:00 6h 27m nonstop Axel-exclusive $375.26 Nov 10, 2026
2027-01-21 → 2027-01-29 Southwest Airlines WN1550 + WN1623 / WN1270 + WN3141 06:30:00→16:30:00 7h 00m 1 stop via MDW · 17:15:00→22:50:00 8h 35m 1 stop via DEN Axel-exclusive $346.76 Nov 10, 2026
2027-01-21 → 2027-01-30 Alaska Airlines AS442 / AS370 08:32:00→16:45:00 5h 13m nonstop · 07:02:00→10:29:00 6h 27m nonstop Axel-exclusive $375.26 Nov 10, 2026
2027-01-21 → 2027-01-30 Southwest Airlines WN1550 + WN1623 / WN1270 + WN3141 06:30:00→16:30:00 7h 00m 1 stop via MDW · 17:15:00→22:50:00 8h 35m 1 stop via DEN Axel-exclusive $346.76 Nov 10, 2026
2027-01-21 → 2027-01-31 Alaska Airlines AS442 / AS370 08:32:00→16:45:00 5h 13m nonstop · 07:02:00→10:29:00 6h 27m nonstop Axel-exclusive $375.26 Nov 10, 2026
2027-01-21 → 2027-01-31 Southwest Airlines WN1550 + WN1623 / WN1270 + WN3141 06:30:00→16:30:00 7h 00m 1 stop via MDW · 17:15:00→22:50:00 8h 35m 1 stop via DEN Axel-exclusive $346.76 Nov 10, 2026
2027-01-21 → 2027-02-01 Alaska Airlines AS442 / AS370 08:32:00→16:45:00 5h 13m nonstop · 07:00:00→10:28:00 6h 28m nonstop Axel-exclusive $385.13 Nov 10, 2026
2027-01-21 → 2027-02-01 Southwest Airlines WN1550 + WN1623 / WN1270 + WN3141 06:30:00→16:30:00 7h 00m 1 stop via MDW · 17:15:00→22:50:00 8h 35m 1 stop via DEN Axel-exclusive $355.88 Nov 10, 2026
2027-01-21 → 2027-02-02 Alaska Airlines AS442 / AS443 08:32:00→16:45:00 5h 13m nonstop · 18:11:00→21:53:00 6h 42m nonstop Axel-exclusive $385.13 Nov 10, 2026
2027-01-21 → 2027-02-02 Southwest Airlines WN1550 + WN1623 / WN1270 + WN3141 06:30:00→16:30:00 7h 00m 1 stop via MDW · 17:15:00→22:50:00 8h 35m 1 stop via DEN Axel-exclusive $355.88 Nov 10, 2026
2027-01-21 → 2027-02-03 Alaska Airlines AS442 / AS370 08:32:00→16:45:00 5h 13m nonstop · 07:00:00→10:28:00 6h 28m nonstop Axel-exclusive $385.13 Nov 10, 2026
2027-01-21 → 2027-02-03 Southwest Airlines WN1550 + WN1623 / WN1270 + WN3141 06:30:00→16:30:00 7h 00m 1 stop via MDW · 17:15:00→22:50:00 8h 35m 1 stop via DEN Axel-exclusive $355.88 Nov 10, 2026
2027-01-21 → 2027-02-04 Alaska Airlines AS442 / AS443 08:32:00→16:45:00 5h 13m nonstop · 18:11:00→21:53:00 6h 42m nonstop Axel-exclusive $385.13 Nov 10, 2026
2027-01-21 → 2027-02-04 Southwest Airlines WN1550 + WN1623 / WN1270 + WN3141 06:30:00→16:30:00 7h 00m 1 stop via MDW · 17:15:00→22:50:00 8h 35m 1 stop via DEN Axel-exclusive $355.88 Nov 10, 2026

Hotels in Philadelphia for these trips

Hotels: under a trip, hotels in Philadelphia for exactly those nights link to the hotel pages for 2 adults in 1 room. When a price is shown, it is the nightly rate and the stay's total, from the lowest saved total among the shortlisted hotels in that star tier for those dates.

All hotels in Philadelphia

Route overview: Seattle to Philadelphia (PHL) flight deals

2027-01-21 · one way · Axel-exclusive $180.50

2027-01-21 · one way · Axel-exclusive $194.75

2027-01-21 → 2027-01-22 · Axel-exclusive $346.76

2027-01-21 → 2027-01-22 · Axel-exclusive $375.26

2027-01-21 → 2027-01-23 · Axel-exclusive $346.76

2027-01-21 → 2027-01-23 · Axel-exclusive $375.26

2027-01-21 → 2027-01-24 · Axel-exclusive $346.76

2027-01-21 → 2027-01-24 · Axel-exclusive $375.26

2027-01-21 → 2027-01-25 · Axel-exclusive $346.76

2027-01-21 → 2027-01-25 · Axel-exclusive $375.26

2027-01-21 → 2027-01-27 · Axel-exclusive $346.76

2027-01-21 → 2027-01-27 · Axel-exclusive $375.26

2027-01-21 → 2027-01-28 · Axel-exclusive $346.76

2027-01-21 → 2027-01-28 · Axel-exclusive $375.26

2027-01-21 → 2027-01-29 · Axel-exclusive $346.76

2027-01-21 → 2027-01-29 · Axel-exclusive $375.26

2027-01-21 → 2027-01-31 · Axel-exclusive $346.76

2027-01-21 → 2027-01-31 · Axel-exclusive $375.26

2027-01-21 → 2027-02-01 · Axel-exclusive $355.88

2027-01-21 → 2027-02-01 · Axel-exclusive $385.13

2027-01-21 → 2027-02-02 · Axel-exclusive $355.88

2027-01-21 → 2027-02-02 · Axel-exclusive $385.13

2027-01-21 → 2027-02-04 · Axel-exclusive $355.88

2027-01-21 → 2027-02-04 · Axel-exclusive $385.13

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