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Delta Flights from St. Louis (STL) to Seattle (SEA)

Trip Type
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Amazing Delta STL to SEA Flight Deals

The cheapest flights to Seattle - Tacoma Intl. found within the past 7 days were $209 round trip and $109 one way. Prices and availability subject to change. Additional terms may apply.

Sat, Apr 17 -
STL
St. Louis
to
SEA
Seattle
$109

One way

found 5 hours ago

Open STL to SEA flights search result page
Sat, Apr 17 -
STL
St. Louis
to
SEA
Seattle
$114

One way

found 5 hours ago

Open STL to SEA flights search result page
Fri, May 21 -
STL
St. Louis
to
SEA
Seattle
$133

One way

found 4 hours ago

Open STL to SEA flights search result page
Sat, Feb 13 -
STL
St. Louis
to
SEA
Seattle
$147

One way

found 20 hours ago

Open STL to SEA flights search result page
Tue, May 18 -
STL
St. Louis
to
SEA
Seattle
$157

One way

found 6 days ago

Open STL to SEA flights search result page
Wed, Feb 3 -
STL
St. Louis
to
SEA
Seattle
$162

One way

found 1 hour ago

Open STL to SEA flights search result page
Wed, Feb 3 -
STL
St. Louis
to
SEA
Seattle
$167

One way

found 1 hour ago

Open STL to SEA flights search result page
Sun, Jan 31 -
STL
St. Louis
to
SEA
Seattle
$173

One way

found 2 days ago

Open STL to SEA flights search result page
Sun, Jan 31 -
STL
St. Louis
to
SEA
Seattle
$178

One way

found 2 days ago

Open STL to SEA flights search result page
Sat, Mar 20 - Sat, Mar 27
STL
St. Louis
to
SEA
Seattle
$209

Roundtrip

found 2 days ago

Open STL to SEA flights search result page
Wed, Feb 17 - Tue, Feb 23
STL
St. Louis
to
SEA
Seattle
$217

Roundtrip

found 3 days ago

Open STL to SEA flights search result page
Sat, Mar 20 - Sat, Mar 27
STL
St. Louis
to
SEA
Seattle
$223

Roundtrip

found 2 days ago

Open STL to SEA flights search result page
Sun, Jan 31 -
STL
St. Louis
to
SEA
Seattle
$173

One way

found 2 days ago

Open STL to SEA flights search result page
Sun, Jan 31 -
STL
St. Louis
to
SEA
Seattle
$178

One way

found 2 days ago

Open STL to SEA flights search result page
Sat, Feb 13 -
STL
St. Louis
to
SEA
Seattle
$147

One way

found 20 hours ago

Open STL to SEA flights search result page
Wed, Feb 3 -
STL
St. Louis
to
SEA
Seattle
$162

One way

found 1 hour ago

Open STL to SEA flights search result page
Wed, Feb 3 -
STL
St. Louis
to
SEA
Seattle
$167

One way

found 1 hour ago

Open STL to SEA flights search result page
Wed, Feb 17 - Tue, Feb 23
STL
St. Louis
to
SEA
Seattle
$217

Roundtrip

found 3 days ago

Open STL to SEA flights search result page
Sat, Mar 20 - Sat, Mar 27
STL
St. Louis
to
SEA
Seattle
$209

Roundtrip

found 2 days ago

Open STL to SEA flights search result page
Sat, Mar 20 - Sat, Mar 27
STL
St. Louis
to
SEA
Seattle
$223

Roundtrip

found 2 days ago

Open STL to SEA flights search result page
Sat, Apr 17 -
STL
St. Louis
to
SEA
Seattle
$109

One way

found 5 hours ago

Open STL to SEA flights search result page
Sat, Apr 17 -
STL
St. Louis
to
SEA
Seattle
$114

One way

found 5 hours ago

Open STL to SEA flights search result page
Fri, May 21 -
STL
St. Louis
to
SEA
Seattle
$133

One way

found 4 hours ago

Open STL to SEA flights search result page
Tue, May 18 -
STL
St. Louis
to
SEA
Seattle
$157

One way

found 6 days ago

Open STL to SEA flights search result page

FAQs about Delta Air Lines Flights from STL to SEA

What terminal is Delta Air Lines at St. Louis Lambert International Airport?

Before you set off from St. Louis, MO (STL-Lambert-St. Louis Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) with Delta Air Lines, it's probably a good idea to get in touch with the airline to find out your terminal information. While your boarding pass should display some of the details, there's no guarantee.

Are there Delta Air Lines non-stop flights from STL to SEA?

As you can't go direct from St. Louis, MO (STL-Lambert-St. Louis Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) with Delta Air Lines, make the most of your stopover. Order some refreshments at a nice airport bar, or go for a wander around the terminal and enjoy some retail therapy.

How long is a Delta Air Lines flight from STL to SEA?

Your Delta Air Lines flight from St. Louis, MO (STL-Lambert-St. Louis Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) will take roughly 7 hours and 17 minutes. But there are loads of things you can do to pass the time. Asking the passenger beside you about their awesome travel experiences is one of them. If you'd rather a different type of in-flight entertainment, you could always read a book.

How many direct and indirect flights does Delta Air Lines fly from STL to SEA?

You'll have plenty of options if you choose to fly with Delta Air Lines between STL and SEA. It offers around 6 flights daily.

If I am not able to travel due to COVID-19, can I change my booking to a later date?

For more info about changing your flight to Seattle, WA (SEA-Seattle - Tacoma Intl.), please visit our Customer Service Portal.

What is the best day to buy a plane ticket?

This just in! Airfares offered on Tuesdays tend to be the cheapest, according to flight demand on Travelocity in 2019. Wednesday and Friday prices are also good, but you may want to prepare your budget if booking on a Monday, as data shows the start of the week is when prices are generally at their highest.

What are the cheapest days to fly?

Frequent travelers may already know this, but earlier in the week can be the cheapest time to fly. In 2019, flights departing on a Tuesday were generally the cheapest of the week, whereas you may pay a premium for weekend flights when demand is usually high. On average, tickets were most expensive for Saturday departures, so if you need to fly out on a weekend, you might look for deals ahead of time.

How far in advance can you book a flight?

Trying to figure out how early you should book your flight? It's possible to start comparing international airfares on Travelocity up to 12 months in advance. However, it does depend on the carrier as not all airlines release their prices that far out. According to our 2019 flight demand trends, last minute planners can still bag a bargain with some of the cheapest fares appearing 1-2 weeks prior to their travel dates.

How can I save money on airline tickets?

We'll let you in on a secret...You can save big on flights if you mix and match your airlines and fare types. In fact, travelers who booked flights on Travelocity in 2019 saved nearly 50% when their return flights consisted of two different airlines or fare types.

*According to flight demand on Travelocity.com from January to December 2019. Savings are subject to change based on departure location, date and destination.

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Price for 1 night 2 adults*

Red Roof Inn Seattle Airport - SEATAC
Red Roof Inn Seattle Airport - SEATAC
2.0 out of 5.0 16838 International Boulevard, SeaTac, WA
$52

Per night/room

Jan 26 - Jan 27

3.6/5 (92 reviews)

Front elevator not working,front elevator not working

Reviewed on Sep 2, 2020
This hotel features free WiFi in public areas, laundry facilities, and self parking. A free airport shuttle is offered as well. Multilingual staff at the 24-hour ...
Red Lion Hotel Seattle Airport Sea-Tac
Red Lion Hotel Seattle Airport Sea-Tac
3.0 out of 5.0 18220 International Blvd, SeaTac, WA
$70

Per night/room

Feb 19 - Feb 20

3.8/5 (48 reviews)

I felt it was very clean, staff very nice, bed amazing. In the bathroom by the sink there was some chipping of paint but everything else was perfect.

Reviewed on Dec 16, 2020
This hotel doesn't skimp on freebies - guests have free WiFi and a free airport shuttle. Traveling for business? Take advantage of the business center, express ...
Country Inn & Suites by Radisson, Seattle-Tacoma International Airport, WA
Country Inn & Suites by Radisson, Seattle-Tacoma International Airport, WA
2.5 out of 5.0 3100 South 192nd Street, SeaTac, WA
$72

Per night/room

Feb 2 - Feb 3

4.4/5 (71 reviews)

It was close to home. Big soft beds. The room set up made it almost impossible to navigate the room when somebody was using the desk and chair.

Reviewed on Dec 6, 2020
This hotel doesn't skimp on freebies - guests receive free buffet breakfast, free self parking, and a free airport shuttle. Traveling on business? Take advantage ...

Popular Delta Flight Routes from STL

Top Delta Flight Routes from SEA

Top Flights for Delta originating from STL

International

*Price based on the lowest price found within past 24 hours and based upon one night stay for two adults over the next thirty days. Prices and availability subject to change. Additional terms may apply.