$155 Cheap United flights St. Louis (STL) to Seattle (SEA)
Prices were available within the past 7 days and start at $155 for one-way flights and $278 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.
Sat, May 2 - Sun, May 10
STL
St. Louis
SEA
Seattle
$278 Roundtrip, found 2 days ago
$278
Roundtrip
found 2 days ago
Sat, Jun 13 - Mon, Jun 29
STL
St. Louis
SEA
Seattle
$369 Roundtrip, found 19 hours ago
$369
Roundtrip
found 19 hours ago
Find the cheapest month to fly from St. Louis (STL) to Seattle (SEA)
January is typically the cheapest month to fly
From $126 - $331 per traveler.
Origin airport | Lambert-St. Louis Intl. |
|---|---|
Destination airport | Seattle - Tacoma Intl. |
Airlines serving | Alaska Airlines, Delta, United |
Popular airline | Alaska Airlines |
Distance | 2728 km |
Average flight time | 2 hours 35 mins |
Most Popular United Routes from St. Louis
Most Popular United Routes from Seattle
- Los Angeles to Guatemala City (LAX - GUA)
- Dallas to Syracuse (DFW - SYR)
- Newark Liberty Intl. Airport to Orlando (EWR - MCO)
- St. George to Boston (SGU - BOS)
- Tucson to Detroit (TUS - DTW)
- Palm Springs to Portland (PSP - PDX)
- New York to Mobile (LGA - MOB)
- Chicago to Fort Myers (ORD - RSW)
- Los Angeles to London (LAX - LHR)
- Las Vegas to Atlanta (LAS - ATL)
Popular Domestic Routes in Seattle - Tacoma Intl.
- Los Angeles to Guatemala City (LAX - GUA)
- Tucson to Detroit (TUS - DTW)
- New York to Mobile (LGA - MOB)
- Tampa to Las Vegas (TPA - LAS)
- Allentown to Wichita (ABE - ICT)
- St. George to Boston (SGU - BOS)
- Detroit to Phoenix (DTW - PHX)
- San Francisco to Miami (SFO - MIA)
- Newark Liberty Intl. Airport to Orlando (EWR - MCO)
- Palm Springs to Portland (PSP - PDX)