Cheap flights from Seattle

We are watching 113 routes out of Seattle. The cheapest fare we can vouch for today is €43, and for each one we say whether today is a good moment or you should wait.

See this fare · Los Angeles €43 San Diego €58 San Francisco €60

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Where to fly from Seattle

Fri

11 Dec

Seattle → Los Angeles

Frontier Airlines Based on 676 observations ✈ Direct

WN Based on 76 observations ✈ Direct

€58

Wed

9 Dec

Seattle → San Francisco

Alaska Airlines Based on 311 observations ✈ Direct

Alaska Airlines Based on 202 observations ✈ Direct

Alaska Airlines Based on 277 observations ✈ Direct

Alaska Airlines Based on 130 observations ✈ Direct

Frontier Airlines Based on 184 observations 1 stop

Frontier Airlines Based on 239 observations ✈ Direct

Alaska Airlines Based on 53 observations ✈ Direct

Frontier Airlines Based on 197 observations 1 stop

Alaska Airlines Based on 120 observations ✈ Direct

Frontier Airlines Based on 210 observations ✈ Direct

AC Based on 157 observations ✈ Direct

Alaska Airlines Based on 28 observations 2 stops

American Airlines Based on 143 observations ✈ Direct

Alaska Airlines Based on 115 observations 1 stop

Frontier Airlines Based on 49 observations 1 stop

€112

Thu

19 Nov

Seattle → Raleigh/Durham

Frontier Airlines Based on 23 observations 1 stop

Frontier Airlines Based on 68 observations 1 stop

€114

Fri

22 Jan

Seattle → Guadalajara

Volaris Based on 39 observations ✈ Direct

Alaska Airlines Based on 642 observations ✈ Direct

WestJet Based on 10 observations 1 stop

Frontier Airlines Based on 60 observations 1 stop

€128

Wed

9 Dec

Seattle → Dallas-Fort Worth

American Airlines Based on 37 observations ✈ Direct

€133

Wed

25 Nov

Seattle → Salt Lake City

Frontier Airlines Based on 54 observations 1 stop

Alaska Airlines Based on 214 observations ✈ Direct

€137

Tue

10 Nov

Seattle → Indianapolis

Alaska Airlines Based on 75 observations ✈ Direct

€137

Wed

18 Nov

Seattle → Minneapolis

Alaska Airlines Based on 55 observations ✈ Direct

Southwest Airlines Based on 133 observations ✈ Direct

United Airlines Based on 60 observations 1 stop

Alaska Airlines Based on 85 observations ✈ Direct

€141

Mon

9 Nov

Seattle → Puerto Vallarta

Southwest Airlines Based on 15 observations 2 stops

€142

Thu

19 Nov

Seattle → Cincinnati / Covington

Frontier Airlines Based on 14 observations 1 stop

Alaska Airlines Based on 63 observations ✈ Direct

Alaska Airlines Based on 90 observations ✈ Direct

€149

Wed

2 Dec

Seattle → Fort Lauderdale

AS Based on 103 observations 1 stop

€152

Thu

19 Nov

Seattle → New Orleans

Frontier Airlines Based on 66 observations 1 stop

€162

Sat

14 Nov

Seattle → Oklahoma City

Frontier Airlines Based on 10 observations 1 stop

Southwest Airlines Based on 73 observations 1 stop

Alaska Airlines Based on 70 observations 1 stop

American Airlines Based on 205 observations ✈ Direct

€177

Tue

10 Nov

Seattle → Mexico City

American Airlines Based on 151 observations 1 stop

United Airlines Based on 10 observations 2 stops

Alaska Airlines Based on 25 observations ✈ Direct

Southwest Airlines Based on 23 observations 1 stop

Alaska Airlines Based on 9 observations ✈ Direct

Icelandair Based on 60 observations 1 stop

American Airlines Based on 53 observations 1 stop

Alaska Airlines Based on 27 observations ✈ Direct

€202

Tue

1 Dec

Seattle → Jacksonville

Frontier Airlines Based on 26 observations 3 stops

Frontier Airlines Based on 14 observations 2 stops

€202

Tue

10 Nov

Seattle → Philadelphia

American Airlines Based on 45 observations ✈ Direct

Southwest Airlines Based on 26 observations 2 stops

Icelandair Based on 23 observations 1 stop

Alaska Airlines Based on 32 observations ✈ Direct

Icelandair Based on 102 observations 1 stop

Alaska Airlines Based on 36 observations ✈ Direct

Alaska Airlines Based on 22 observations ✈ Direct

€222

Thu

12 Nov

Seattle → Walla Walla

Alaska Airlines Based on 17 observations ✈ Direct

€225

Wed

25 Nov

Seattle → Albuquerque

American Airlines Based on 18 observations 1 stop

€228

Flights from Seattle: quick answers

What is the cheapest flight from Seattle right now?

Los Angeles at €43 one-way, the lowest fare today across the 113 routes we track from Seattle. Next: San Diego €58, San Francisco €60, San Jose €60.

How far in advance should I book flights from Seattle?

28–41 days before departure: that has been the cheapest booking window on 23 of the 91 routes from Seattle where we measured it.

Which airlines have the cheapest flights from Seattle?

Alaska Airlines has the lowest fare on 34 of the 113 routes we track from Seattle, then Icelandair (22), Frontier Airlines (21), American Airlines (10), United Airlines (7).

How many routes from Seattle does Piratefly track?

113 routes, with 8,091 fares we have recorded over time.

Booking tips from our fare data

How far in advance should you book a flight?: Book 1–1.5 months before departure. Tracking the same flights at every lead time (97,668 flights on 19,841 routes, 2026-06-14 to 2026-11-05), that window had the smallest average premium over each flight's lowest fare: +16.7%, against +49.3% in the last 3 days.
What is the cheapest day of the week to fly?: Wednesday. Comparing each fare with the median of its own route, Wednesday departures were +3.5% and Tuesday +4.3%, while Friday was the dearest at +10.5%. Weekend departures cost more than midweek ones.
What is the cheapest month to fly?: November 2026. Comparing each route's fares month by month (booked 8–60 days ahead), November 2026 departures were -1.1% against the route's own median, while January 2027 was the dearest at +22.7%. Covers September 2026, October 2026, November 2026, December 2026, January 2027; fares observed 2026-06-14 to 2026-11-05.