
$105 Cheap Delta flights St. Louis (STL) to Seattle (SEA)
Prices were available within the past 7 days and start at $105 for one-way flights and $197 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Tue, May 5 - Tue, May 19
STL
St. Louis
SEA
Seattle
$197 Roundtrip, found 6 days ago
$197
Roundtrip
found 6 days ago

Tue, May 12 - Wed, May 27
STL
St. Louis
SEA
Seattle
$203 Roundtrip, found 6 days ago
$203
Roundtrip
found 6 days ago

Tue, Aug 4 - Wed, Aug 19
STL
St. Louis
SEA
Seattle
$209 Roundtrip, found 4 days ago
$209
Roundtrip
found 4 days ago

Thu, May 7 - Tue, May 19
STL
St. Louis
SEA
Seattle
$228 Roundtrip, found 6 days ago
$228
Roundtrip
found 6 days ago

Mon, Jun 1 - Sat, Jun 6
STL
St. Louis
SEA
Seattle
$234 Roundtrip, found 5 days ago
$234
Roundtrip
found 5 days ago

Fri, Aug 7 - Sat, Aug 15
STL
St. Louis
SEA
Seattle
$243 Roundtrip, found 2 hours ago
$243
Roundtrip
found 2 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 - $308 per traveler.
Travel information
Origin airport | Lambert-St. Louis Intl. |
|---|---|
Destination airport | Seattle - Tacoma Intl. |
Airlines serving | Alaska Airlines, American Airlines, Delta, Southwest Airlines, United |
Popular airline | Alaska Airlines |
Distance | 2728 km |
Average flight time | 2 hours 40 mins |
Explore a world of travel with Expedia
Most Popular Delta Routes from St. Louis
Most Popular Delta Routes from Seattle
- Myrtle Beach to Los Angeles (MYR - LAX)
- New York to Seattle (LGA - SEA)
- Phoenix to Boise (PHX - BOI)
- Milwaukee to Bangkok (MKE - BKK)
- Philadelphia to Minneapolis (PHL - MSP)
- Tampa to Hartford (TPA - BDL)
- New York to San Juan (JFK - SJU)
- Memphis to Kansas City (MEM - MCI)
- Detroit to Dallas (DTW - DFW)
- Fort Lauderdale to Punta Cana (FLL - PUJ)
Popular Domestic Routes in Seattle - Tacoma Intl.
- New York to Orlando (JFK - MCO)
- Philadelphia to Minneapolis (PHL - MSP)
- Detroit to Dallas (DTW - DFW)
- Denver to Kansas City (DEN - MCI)
- Ontario to New York (ONT - LGA)
- Rochester to Sarasota (ROC - SRQ)
- New York to San Juan (JFK - SJU)
- Newark Liberty Intl. Airport to West Palm Beach (EWR - PBI)
- Chicago to Punta Cana (ORD - PUJ)
- Cincinnati to Las Vegas (CVG - LAS)