How popular is this State of Washington to St. Louis flight route?

This flight path from Washington to Lambert-St Louis was viewed by 5 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

What are the cheapest airlines to fly from State of Washington to St. Louis one-way?

One-way options have recently been found by users for as low as $95 on Delta. Other airlines that offer cheap prices include Southwest from $105 and United Airlines from $109 one-way.

What are the most popular routes from State of Washington to St. Louis?

The most popular flight routes from State of Washington to St. Louis are Seattle/Tacoma Intl - Lambert-St Louis, Portland - Lambert-St Louis and Spokane - Lambert-St Louis.

What are the cheapest flights from State of Washington to St. Louis?

The cheapest flight price from State of Washington to St. Louis is $118. On average you can expect to pay $331. The most popular route, (Seattle/Tacoma Intl - Lambert-St Louis), can usually be booked for $177.

What are the most reliable airlines from State of Washington to St. Louis?

The top 3 most reliable airlines when flying from State of Washington to St. Louis are Alaska Airlines (95%), Hawaiian Airlines (95%) and Air Tahiti Nui (95%).

What are the most popular airlines that fly from State of Washington to St. Louis?

The most popular airlines flying from State of Washington to St. Louis are American Airlines, Alaska Airlines and Delta. Something to consider prior to booking your flight.

How far in advance should I book a flight from State of Washington to St. Louis?

Find a great deal and save up to 72% by booking at least 48 days prior to your desired departure date, rather than waiting until the week of travel. According to our data, there are a number of flights available from State of Washington to St. Louis within the next two weeks, with the cheapest ticket starting at $416.

What is the cheapest month to fly from State of Washington to St. Louis?

The best pricing can be found in the month of September. Prices to St. Louis from State of Washington average $384. You can even find prices in September for less than $384, as users have found deals to St. Louis from as low as $216. The month of December appears to be one of the more expensive times to travel to St. Louis from State of Washington. Flying in the targeted month can save you up to 21%.

What airport do you fly into for flights to St. Louis from Washington?

Lambert-St Louis (STL), located 12.7 mi from the city center, is the airport you fly into when you book flights from Washington to St. Louis.

Can I find deals for flights from Washington to St. Louis that include hotel bookings?

Yes. In addition to deals on Washington to St. Louis flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Washington to St. Louis?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Washington to St. Louis.

Can I find deals for business class flights from Washington to St. Louis?

Yes. Cheapflights offers flight deals from Washington to St. Louis by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$95+ Flights from Washington to St. Louis

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Cheap flight deals from Washington to St. Louis

Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 3 stars
Round-trip from	$229 (Delta)
One-way from	$95 (Delta)
Popular in	December
Cheapest in	September
Average price	$347
Good round-trip deal	$338 or less
Good one-way deal	$148 or less

Provider with most accurate pricing for Seattle/Tacoma Intl-Lambert-St Louis flight deals.

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Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Lambert-St Louis flights.

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From Washington to Lambert-St Louis

Search Deals

One-way flight from Washington to Lambert-St Louis

Search Deals

Highest demand for flights based on searches. 7% potential increase in price ($32 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 1% potential price decrease ($7 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in March 2025

Search Deals

Price to beat on a round-trip flight from Washington to Lambert-St Louis.

Search Deals

Price to beat on a one-way flight from Washington to Lambert-St Louis.

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Find flight deals from Washington to St. Louis

Cheapest flights from Washington to St. Louis
Explore the most affordable flight options available from Washington to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 28, 2025.

Wed 7/2311:59 pmPDX - STL

1 stop7h 32mUnited Airlines

Mon 7/285:00 amSTL - PDX

1 stop6h 42mUnited Airlines

Deal found 3/26

$227

Tue 6/311:50 pmSEA - STL

1 stop8h 57mDelta

Fri 6/66:14 pmSTL - SEA

1 stop7h 33mDelta

Deal found 3/27

$229

Wed 5/145:00 pmPDX - STL

1 stop5h 33mDelta

Wed 5/286:05 pmSTL - PDX

1 stop7h 20mDelta

Deal found 3/25

$232

Fri 5/25:35 amSEA - STL

1 stop5h 35mSouthwest

Sun 5/46:45 pmSTL - SEA

1 stop8h 30mSouthwest

Deal found 3/27

$233

Tue 4/2211:59 pmPDX - STL

1 stop8h 27mAmerican Airlines

Tue 5/66:00 amSTL - PDX

1 stop6h 24mAmerican Airlines

Deal found 3/26

$234

Sat 5/38:03 amSEA - STL

Nonstop4h 05mHawaiian Airlines

Tue 5/66:30 amSTL - SEA

Nonstop4h 24mHawaiian Airlines

Deal found 3/27

$237

Thu 4/246:00 amSEA - STL

1 stop26h 01mFrontier

Thu 5/14:07 pmSTL - SEA

1 stop21h 24mFrontier

Deal found 3/27

$240

Thu 5/16:20 amPDX - STL

1 stop6h 47mFrontier

Sun 5/49:55 pmSTL - PDX

1 stop19h 47mFrontier

Deal found 3/27

$248

Sun 4/207:00 amSEA - STL

1 stop6h 47mUnited Airlines

Thu 4/245:54 pmSTL - SEA

1 stop9h 04mUnited Airlines

Deal found 3/27

$249

Wed 4/912:59 amSEA - STL

1 stop7h 34mAmerican Airlines

Tue 4/159:41 amSTL - SEA

1 stop7h 56mAmerican Airlines

Deal found 3/27

$258

Wed 10/86:00 pmSEA - STL

Nonstop3h 56mAlaska Airlines

Sun 10/127:00 amSTL - SEA

Nonstop4h 26mAlaska Airlines

Deal found 3/27

$269

Wed 4/236:03 pmSEA - STL

Nonstop3h 56mMultiple Airlines

Mon 4/286:58 pmSTL - SEA

1 stop7h 46mMultiple Airlines

Deal found 3/27

$273

Best flights from Washington to St. Louis
Discover carefully curated flight deals from Washington to St. Louis that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated March 28, 2025.

Tue 6/311:50 pmSEA - STL

1 stop8h 57mDelta

Fri 6/66:14 pmSTL - SEA

1 stop7h 33mDelta

Deal found 3/27

$229

Fri 5/25:35 amSEA - STL

1 stop5h 35mSouthwest

Sun 5/46:45 pmSTL - SEA

1 stop8h 30mSouthwest

Deal found 3/27

$233

Tue 4/2211:59 pmPDX - STL

1 stop8h 27mAmerican Airlines

Tue 5/66:00 amSTL - PDX

1 stop6h 24mAmerican Airlines

Deal found 3/26

$234

Sat 5/38:03 amSEA - STL

Nonstop4h 05mHawaiian Airlines

Tue 5/66:30 amSTL - SEA

Nonstop4h 24mHawaiian Airlines

Deal found 3/27

$237

Thu 4/246:00 amSEA - STL

1 stop26h 01mFrontier

Thu 5/14:07 pmSTL - SEA

1 stop21h 24mFrontier

Deal found 3/27

$240

Sun 4/207:00 amSEA - STL

1 stop6h 47mUnited Airlines

Thu 4/245:54 pmSTL - SEA

1 stop9h 04mUnited Airlines

Deal found 3/27

$249

Wed 4/236:03 pmSEA - STL

Nonstop3h 56mMultiple Airlines

Mon 4/286:58 pmSTL - SEA

1 stop7h 46mMultiple Airlines

Deal found 3/27

$273

Thu 5/2211:59 pmSEA - STL

1 stop9h 26mSun Country Air

Sun 5/2510:20 amSTL - SEA

1 stop23h 54mSun Country Air

Deal found 3/26

$310

Tue 4/226:03 pmSEA - STL

Nonstop3h 56mAlaska Airlines

Thu 4/245:45 amSTL - SEA

1 stop7h 47mAlaska Airlines

Deal found 3/27

$357

Wed 5/145:00 pmPDX - STL

1 stop5h 33mDelta

Wed 5/286:05 pmSTL - PDX

1 stop7h 20mDelta

Deal found 3/25

$232

Thu 5/16:20 amPDX - STL

1 stop6h 47mFrontier

Sun 5/49:55 pmSTL - PDX

1 stop19h 47mFrontier

Deal found 3/27

$248

Wed 4/912:59 amSEA - STL

1 stop7h 34mAmerican Airlines

Tue 4/159:41 amSTL - SEA

1 stop7h 56mAmerican Airlines

Deal found 3/27

$258

Last-minute flights from Washington to St. Louis
Discover last-minute flight deals from Washington to St. Louis. Data last updated March 28, 2025 and is based on user searches.

Tue 4/112:59 amPDX - STL

1 stop7h 35mDelta

Tue 4/85:00 pmSTL - PDX

1 stop8h 44mDelta

Deal found 3/26

$313

Tue 4/15:30 amSEA - STL

1 stop5h 53mDelta

Wed 4/165:00 pmSTL - SEA

1 stop9h 02mDelta

Deal found 3/26

$359

Tue 4/16:15 amSEA - STL

2 stops10h 10mSouthwest

Wed 4/165:25 pmSTL - SEA

1 stop6h 55mSouthwest

Deal found 3/26

$408

Tue 4/18:04 amSEA - STL

Nonstop4h 11mHawaiian Airlines

Wed 4/166:44 amSTL - SEA

Nonstop4h 30mHawaiian Airlines

Deal found 3/26

$417

Tue 4/18:50 amSEA - STL

1 stop5h 46mUnited Airlines

Wed 4/168:00 amSTL - SEA

2 stops12h 07mUnited Airlines

Deal found 3/26

$468

Wed 4/25:08 amPDX - STL

1 stop7h 07mHawaiian Airlines

Tue 4/83:11 pmSTL - PDX

1 stop6h 11mHawaiian Airlines

Deal found 3/27

$427

Thu 4/36:50 pmPDX - STL

2 stops14h 44mMultiple Airlines

Sun 4/66:35 amSTL - PDX

2 stops29h 45mMultiple Airlines

Deal found 3/25

$442

Thu 4/35:50 amPDX - STL

2 stops12h 00mSouthwest

Sun 4/68:25 pmSTL - PDX

1 stop6h 50mSouthwest

Deal found 3/25

$472

Fri 4/41:56 pmSEA - STL

1 stop17h 10mFrontier

Sun 4/61:06 pmSTL - SEA

1 stop23h 40mFrontier

Deal found 3/26

$320

Sun 4/66:40 amPDX - STL

1 stop24h 26mFrontier

Fri 4/116:38 pmSTL - PDX

1 stop16h 09mFrontier

Deal found 3/27

$270

Sun 4/612:59 amSEA - STL

1 stop7h 34mAmerican Airlines

Wed 4/95:00 amSTL - SEA

1 stop9h 33mAmerican Airlines

Deal found 3/27

$358

Sun 4/68:45 amPDX - STL

1 stop5h 51mUnited Airlines

Fri 4/114:45 pmSTL - PDX

2 stops9h 45mUnited Airlines

Deal found 3/27

$370

One-way flights from Washington to St. Louis
Search for one-way flight options from Washington to St. Louis. Find affordable one-way fares based on user searches. Data last updated March 28, 2025.

Thu 5/112:45 amSEA - STL

1 stop7h 56mDelta

Deal found 3/27

$95

Wed 5/75:00 amSEA - STL

2 stops10h 45mSouthwest

Deal found 3/27

$105

Sun 5/45:05 amSEA - STL

1 stop10h 02mUnited Airlines

Deal found 3/27

$109

Sat 5/176:00 amPDX - STL

1 stop9h 09mUnited Airlines

Deal found 3/26

$109

Tue 4/154:00 pmPDX - STL

1 stop5h 59mAlaska Airlines

Deal found 3/25

$111

Wed 5/286:04 pmSEA - STL

Nonstop4h 00mHawaiian Airlines

Deal found 3/27

$119

Wed 4/305:20 amPDX - STL

2 stops10h 25mSouthwest

Deal found 3/26

$119

Thu 4/1710:59 pmPDX - STL

1 stop8h 29mDelta

Deal found 3/25

$121

Wed 4/92:58 pmPDX - STL

1 stop6h 35mAmerican Airlines

Deal found 3/25

$122

Fri 5/26:03 pmSEA - STL

Nonstop3h 56mAlaska Airlines

Deal found 3/27

$125

Thu 5/151:25 pmPDX - STL

1 stop8h 39mHawaiian Airlines

Deal found 3/26

$134

Sat 4/1212:59 amSEA - STL

1 stop7h 34mAmerican Airlines

Deal found 3/26

$135

Cheapflights Fare Finder

Use the filters below to find and compare flights from Washington to St. Louis that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

SeattleSt. Louis

SEA - STL

SEASTL

Seattle/Tacoma Intl

Tue 6/3

11:50 pm-10:47 am

1 stop8h 57m

Lambert-St Louis

Fri 6/6

6:14 pm-11:47 pm

1 stop7h 33m

$229

PortlandSt. Louis

PDX - STL

PDXSTL

Portland

Wed 5/14

5:00 pm-12:33 am

1 stop5h 33m

Lambert-St Louis

Wed 5/28

6:05 pm-11:25 pm

1 stop7h 20m

$232

SeattleSt. Louis

SEA - STL

SEASTL

Seattle/Tacoma Intl

Fri 5/2

5:35 am-1:10 pm

1 stop5h 35m

Lambert-St Louis

Sun 5/4

6:45 pm-1:15 am

1 stop8h 30m

$233

PortlandSt. Louis

PDX - STL

PDXSTL

Portland

Tue 4/22

11:59 pm-10:26 am

1 stop8h 27m

Lambert-St Louis

Tue 5/6

6:00 am-10:24 am

1 stop6h 24m

$234

SeattleSt. Louis

SEA - STL

SEASTL

Seattle/Tacoma Intl

Sat 5/3

8:03 am-2:08 pm

Nonstop4h 05m

Lambert-St Louis

Tue 5/6

6:30 am-8:54 am

Nonstop4h 24m

$237

SeattleSt. Louis

SEA - STL

SEASTL

Seattle/Tacoma Intl

Thu 4/24

6:00 am-10:01 am

1 stop26h 01m

Lambert-St Louis

Thu 5/1

4:07 pm-11:31 am

1 stop21h 24m

$240

PortlandSt. Louis

PDX - STL

PDXSTL

Portland

Thu 5/1

6:20 am-3:07 pm

1 stop6h 47m

Lambert-St Louis

Sun 5/4

9:55 pm-3:42 pm

1 stop19h 47m

$248

SeattleSt. Louis

SEA - STL

SEASTL

Seattle/Tacoma Intl

Sun 4/20

7:00 am-3:47 pm

1 stop6h 47m

Lambert-St Louis

Thu 4/24

5:54 pm-12:58 am

1 stop9h 04m

$249

SeattleSt. Louis

SEA - STL

SEASTL

Seattle/Tacoma Intl

Wed 4/9

12:59 am-10:33 am

1 stop7h 34m

Lambert-St Louis

Tue 4/15

9:41 am-3:37 pm

1 stop7h 56m

$258

SeattleSt. Louis

SEA - STL

SEASTL

Seattle/Tacoma Intl

Wed 4/23

6:03 pm-11:59 pm

Nonstop3h 56m

Lambert-St Louis

Mon 4/28

6:58 pm-12:44 am

1 stop7h 46m

$273

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/28

Showing 1-10 of 54 results

...

Best time to book a flight from Washington to St. Louis

Have a flexible travel schedule? Discover the best time to fly to St. Louis from Washington with our price prediction graph.

Estimated round-trip price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Washington to St. Louis

What is the cheapest month to book a flight from State of Washington to St. Louis?

Currently, August is the cheapest month in which you can book a flight from State of Washington to St. Louis (average of $311). Flying from State of Washington to St. Louis in March is currently the most expensive (average of $356). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from WA to STL?

When flying from State of Washington to St. Louis, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Weekly flight availability from State of Washington to St. Louis

The most flights from USWA to STL are scheduled on a Tuesday (10 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (2 on average).

Rainfall in St. Louis by month

In terms of precipitation, rainfall in St. Louis ranges from 2.2 - 4.7 inches per month. May is typically the wettest month, when rainfall can reach 4.7 in. February is typically the driest time to visit St. Louis when rainfall is around 2.2 in.

Temperature in St. Louis by month

If weather is an important factor for your trip to St. Louis, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 32.0 F).

Reviews of airlines servicing St. Louis

Peruse reviews from past customers who have flown with Southwest, Alaska Airlines and Delta from Washington to St. Louis to help guide your decision. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Southwest

8.1

Very good

4,273 reviews

Reviews

1 / 20

8.0

Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.

Southwest

8.1

Very good

4,273 reviews

Southwest

8.1

Very good

4,273 reviews

Reviews

1 / 20

8.0

Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.

Alaska Airlines

8.0

Very good

9,798 reviews

Southwest

8.1

Very good

4,273 reviews

Reviews

1 / 20

8.0

Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.

Delta

8.0

Very good

7,896 reviews

Southwest

8.1

Very good

4,273 reviews

Reviews

1 / 20

8.0

Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.

Hawaiian Airlines

7.9

Good

2,336 reviews

Southwest

8.1

Very good

4,273 reviews

Reviews

1 / 20

8.0

Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.

United Airlines

7.4

Good

8,603 reviews

Southwest

8.1

Very good

4,273 reviews

Reviews

1 / 20

8.0

Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.

Related info for your journey

What airport do you fly into for flights to St. Louis from Washington?
Lambert-St Louis (STL), located 12.7 mi from the city center, is the airport you fly into when you book flights from Washington to St. Louis.
How popular is this State of Washington to St. Louis flight route?
This flight path from Washington to Lambert-St Louis was viewed by 5 users in the past month. Keep an eye out for changes in search interest prior to high and low season.
What are the cheapest airlines to fly from State of Washington to St. Louis one-way?
One-way options have recently been found by users for as low as $95 on Delta. Other airlines that offer cheap prices include Southwest from $105 and United Airlines from $109 one-way.
What are the most popular routes from State of Washington to St. Louis?
The most popular flight routes from State of Washington to St. Louis are Seattle/Tacoma Intl - Lambert-St Louis, Portland - Lambert-St Louis and Spokane - Lambert-St Louis.
What are the most reliable airlines from State of Washington to St. Louis?
The top 3 most reliable airlines when flying from State of Washington to St. Louis are Alaska Airlines (95%), Hawaiian Airlines (95%) and Air Tahiti Nui (95%).
What are the cheapest flights from State of Washington to St. Louis?
The cheapest flight price from State of Washington to St. Louis is $118. On average you can expect to pay $331. The most popular route, (Seattle/Tacoma Intl - Lambert-St Louis), can usually be booked for $177.
Can I find deals for flights from Washington to St. Louis that include hotel bookings?
Yes. In addition to deals on Washington to St. Louis flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Washington to St. Louis?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Washington to St. Louis.
Can I find deals for business class flights from Washington to St. Louis?
Yes. Cheapflights offers flight deals from Washington to St. Louis by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from State of Washington to St. Louis?
Currently, August is the cheapest month in which you can book a flight from State of Washington to St. Louis (average of $311). Flying from State of Washington to St. Louis in March is currently the most expensive (average of $356). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Fenton

Fairview Heights

Maryland Heights

Collinsville

Wentzville

Eureka

St. Peters

Festus

Glencoe

Alton

Farmington

Chesterfield

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Top 7 airlines flying from Washington to St. Louis

Airline	Cheapest	Average	Flexibility	On-time
Frontier	Cheapest$142	Average$248	FlexibilityNo cancel fee	On-time62%
Delta	Cheapest$195	Average$398	FlexibilityNo cancel fee	On-timeN/A
American Airlines	Cheapest$196	Average$434	FlexibilityNo cancel fee	On-time71%
United Airlines	Cheapest$216	Average$442	FlexibilityNo cancel fee	On-time69%
Alaska Airlines	Cheapest$236	Average$526	FlexibilityNo cancel fee	On-time75%
Hawaiian Airlines	Cheapest$237	Average$387	FlexibilityNo cancel fee	On-time85%
Southwest	Cheapest$276	Average$478	FlexibilityNo cancel fee	On-time63%

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$95+ Cheap flights from Washington to St. Louis (STL)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/1. Fares are subject to change and may not be available on all flights or dates of travel.

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Cheap flight deals from Washington to St. Louis

Keep the following information in mind while searching for Washington to St. Louis flight deals. Data was last updated March 28, 2025.

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Good round-trip deal

Good one-way deal

Find flight deals from Washington to St. Louis

Cheapest flights from Washington to St. LouisExplore the most affordable flight options available from Washington to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 28, 2025.

Explore the most affordable flight options available from Washington to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 28, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Washington to St. Louis that are best for you.

Best time to book a flight from Washington to St. Louis

Have a flexible travel schedule? Discover the best time to fly to St. Louis from Washington with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Washington to St. Louis

What is the cheapest month to book a flight from State of Washington to St. Louis?

What is the cheapest time of day to fly from WA to STL?

Find hourly flight availability from Washington to St. Louis. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated March 28, 2025.

Weekly flight availability from State of Washington to St. Louis

Explore weekly flight availability from Washington to St. Louis. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated March 28, 2025.

Rainfall in St. Louis by month

Plan your trip to St. Louis by taking into account the average rainfall totals by month.

Temperature in St. Louis by month

Plan your trip to St. Louis by taking into account the average temperature totals by month.

Reviews of airlines servicing St. Louis

Peruse reviews from past customers who have flown with Southwest, Alaska Airlines and Delta from Washington to St. Louis to help guide your decision. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Washington to St. Louis. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What airport do you fly into for flights to St. Louis from Washington?

How popular is this State of Washington to St. Louis flight route?

What are the cheapest airlines to fly from State of Washington to St. Louis one-way?

What are the most popular routes from State of Washington to St. Louis?

What are the most reliable airlines from State of Washington to St. Louis?

What are the cheapest flights from State of Washington to St. Louis?

Can I find deals for flights from Washington to St. Louis that include hotel bookings?

How can I find direct flights from Washington to St. Louis?

Can I find deals for business class flights from Washington to St. Louis?

What is the cheapest month to book a flight from State of Washington to St. Louis?

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Alternative routes for Washington to St. Louis

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Top 7 airlines flying from Washington to St. Louis

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Cheapest flights from Washington to St. Louis
Explore the most affordable flight options available from Washington to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 28, 2025.