Cheap flights from St. Louis to Seattle from £75
Trusted by millions
Kiwi.com Guarantee for stress-free travel
One search, all the best deals
Explore flight deals to Seattle
Not happy with the results? Try some of our useful filters
Search by stops
Search by carrier
Search by price
Search by departure date
Not happy with the results? Try some of our useful filters
Search by stops
Search by carrier
Search by price
Search by departure date
How much do flights to Seattle cost?
Getting from Seattle airport to the city center
Fastest option: Link Light Rail. Best value: Sound Transit buses and Link Light Rail.
Transport Option | Typical Time | Typical Cost | Frequency | Best For |
|---|---|---|---|---|
35-45 min | $3-$3.25 (fare to downtown stations) | every 6–15 min (traffic dependent) | budget travelers to downtown | |
45-70 min | $2.75-$3.25 (varies by destination zone) | every 15–30 min (traffic dependent) | Bellevue and Eastside | |
50-80 min | $2.75 (flat fare) | every 15–30 min (traffic dependent) | local connections | |
25-50 min | $45-$65 (metered; flat rate to downtown available) | on-demand 24/7 (traffic dependent) | door-to-door convenience | |
25-50 min | $35-$60 (surge pricing may apply) | on-demand 24/7 (traffic dependent) | flexible pickup locations | |
25-50 min | $50-$100 (pre-booked; varies by provider) | by reservation (traffic dependent) | groups and guaranteed pickup | |
25-50 min | $40-$100 (per day; varies by vehicle and provider) | 24/7 availability (traffic dependent) | exploring beyond Seattle |
Notes:
- Prices in USD; table created in 2025 and subject to change.
- Link Light Rail operates from approximately 5:00 AM to midnight, with extended hours on weekends.
- Taxis offer a flat rate of approximately $45 to downtown Seattle; metered fares may vary.
- Ride-hailing pickup is located on the 3rd floor of the parking garage.
- We recommend checking official transport websites for your travel planning.
Updated: December 2025
Key info about flying to Seattle
Weekly direct flights
Discover the top airlines offering direct flights from St. Louis to Seattle in the next month. You’ll find the number of daily direct flights per airline in the chart.
| Airline | Mon 06.04 | Tue 07.04 | Wed 08.04 | Thu 09.04 | Fri 10.04 | Sat 11.04 | Sun 12.04 |
|---|---|---|---|---|---|---|---|
| --- | 2 | 2 | 2 | --- | 1 | --- | |
| 2 | 2 | 2 | 2 | 2 | 1 | 2 | |
| Weekly flights: 20 total | Daily flights: 2.86 average | Most flights: Tuesday 2 flights |
| Airline | Mon 13.04 | Tue 14.04 | Wed 15.04 | Thu 16.04 | Fri 17.04 | Sat 18.04 | Sun 19.04 |
|---|---|---|---|---|---|---|---|
| 1 | --- | --- | --- | --- | --- | --- | |
| 1 | 2 | 2 | 2 | 2 | 2 | 2 | |
| Weekly flights: 14 total | Daily flights: 2 average | Most flights: Tuesday 2 flights |
| Airline | Mon 20.04 | Tue 21.04 | Wed 22.04 | Thu 23.04 | Fri 24.04 | Sat 25.04 | Sun 26.04 |
|---|---|---|---|---|---|---|---|
| 1 | --- | --- | 2 | 2 | 2 | 2 | |
| 1 | 2 | --- | --- | --- | --- | --- | |
| Weekly flights: 12 total | Daily flights: 1.71 average | Most flights: Thursday 2 flights |
| Airline | Mon 27.04 | Tue 28.04 | Wed 29.04 | Thu 30.04 | Fri 01.05 | Sat 02.05 | Sun 03.05 |
|---|---|---|---|---|---|---|---|
| 2 | 2 | 1 | 2 | 2 | 1 | 2 | |
| --- | --- | --- | --- | --- | --- | --- | |
| Weekly flights: 12 total | Daily flights: 1.71 average | Most flights: Monday 2 flights |
Check-in for a flight from St. Louis to Seattle
| Name | Carrier code | IATA Code | Passport needed during booking |
|---|---|---|---|
| Frontier Airlines | FFT | F9 | No |
| United Airlines | UAL | UA | No |
| Alaska Airlines | ASA | AS | No |
| Harbour Air (Priv) | HES | YB | No |
| Air Excursions | X4 | No |
Online check-in is not available for these airlines.
Weather in Seattle
Average Weather
| Month | Average monthly max temperature | Average monthly min temperature |
| January | 7°C | 2°C |
| February | 8°C | 2°C |
| March | 10°C | 3°C |
| April | 13°C | 5°C |
| May | 18°C | 8°C |
| June | 21°C | 10°C |
| July | 25°C | 13°C |
| August | 25°C | 14°C |
| September | 22°C | 11°C |
| October | 15°C | 8°C |
| November | 10°C | 4°C |
| December | 6°C | 2°C |
14 day forecast
Seattle travel tips
What are Chihuly Garden and Glass famous for?
Chihuly Garden and Glass are some of favourite attractions among visitors in Seattle. It’s dedicated to works of innovative glassblower Dale Chihuly, hailed from Tacoma. He created mind-blowing sculptures from glass. Besides eight galleries, visitors can observe one of his biggest works ever influenced by moving sunlight. Come and challenge your imagination!
Please, no heels, only comfy shoes are needed in Seattle
Though major tourist attractions in Seattle are within walking distance from each other, the city is quite hilly. Please, leave high heels at home and put on only comfortable flat shoes. In this case, you’ll be able to enjoy a walk fully.
What is Seattle Freeze?
The term Seattle Freeze means that locals are polite but not friendly. They aren’t welcoming guests of their city and aren’t eager to have small talk with everyone. They are known to be reserved, cold, and distrustful. Never mind, as any rule has an exception.
Frequently asked questions
Planning a trip? Thanks to our Virtual Interlining algorithm, we offer billions of route combinations between any origin and destination in the world by plane. Find the cheapest routes and best deals, as well as the best dates to travel.
Explore alternative trips
Flights from St. Louis
Flights to Seattle
Popular routes
Airports near St. Louis
Airports near Seattle
Download our app