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 $96 on Frontier. Other airlines that offer cheap prices include Delta from $114 and Alaska Airlines from $119 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 Pasco Tri Cities - 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 $530. The most popular route, (Seattle/Tacoma Intl - Lambert-St Louis), can usually be booked for $189.

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 American Airlines (92%), Alaska Airlines (90%) and Hawaiian Airlines (90%).

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 69% 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 $418.

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 $386. You can even find prices in September for less than $386, 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 20%.

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.

$96+ Flights from Washington to St. Louis - Compare & Save Big

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Cheap flight deals from Washington to St. Louis

Most accurate provider	FlightHub 3 stars
Most trusted provider	eDreams 3 stars
Round-trip from	$208 (Frontier)
One-way from	$96 (Mytrip)
Popular in	December
Cheapest in	September
Average price	$342
Good round-trip deal	$337 or less
Good one-way deal	$138 or less

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

Search Deals

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

Search Deals

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 ($30 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 1% potential price decrease ($8 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in April 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 April 30, 2025.

Thu 6/57:12 pmSEA - STL

1 stop12h 00mFrontier

Sat 6/78:11 pmSTL - SEA

1 stop6h 23mFrontier

Deal found 4/29

$208

Mon 6/21:10 amSEA - STL

1 stop6h 44mAmerican Airlines

Sun 6/87:45 amSTL - SEA

1 stop9h 02mAmerican Airlines

Deal found 4/29

$223

Wed 6/112:12 pmPDX - STL

1 stop6h 33mUnited Airlines

Mon 6/164:32 pmSTL - PDX

1 stop8h 03mUnited Airlines

Deal found 4/29

$227

Fri 5/306:35 amPDX - STL

1 stop25h 34mFrontier

Mon 6/27:24 pmSTL - PDX

1 stop6h 55mFrontier

Deal found 4/29

$228

Thu 6/56:04 pmSEA - STL

Nonstop4h 00mMultiple Airlines

Sat 6/78:11 pmSTL - SEA

1 stop6h 23mMultiple Airlines

Deal found 4/29

$243

Fri 6/135:55 amSEA - STL

1 stop9h 24mDelta

Sat 6/217:15 amSTL - SEA

1 stop9h 30mDelta

Deal found 4/28

$244

Tue 10/286:00 pmSEA - STL

Nonstop3h 56mAlaska Airlines

Tue 11/42:55 pmSTL - SEA

Nonstop4h 26mAlaska Airlines

Deal found 4/28

$249

Tue 5/135:15 amSEA - STL

2 stops8h 32mUnited Airlines

Wed 5/145:20 amSTL - SEA

1 stop6h 27mUnited Airlines

Deal found 4/28

$252

Sat 6/78:45 amSEA - STL

Nonstop3h 50mSouthwest

Sun 6/156:20 pmSTL - SEA

1 stop8h 35mSouthwest

Deal found 4/28

$259

Thu 5/296:04 pmSEA - STL

Nonstop4h 00mHawaiian Airlines

Wed 6/46:18 pmSTL - SEA

Nonstop4h 27mHawaiian Airlines

Deal found 4/28

$263

Tue 7/295:05 pmPDX - STL

1 stop5h 33mDelta

Mon 8/42:15 pmSTL - PDX

1 stop9h 46mDelta

Deal found 4/29

$263

Sun 6/89:55 pmPDX - STL

1 stop8h 16mAmerican Airlines

Wed 6/115:29 pmSTL - PDX

1 stop7h 29mAmerican Airlines

Deal found 4/29

$277

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 April 30, 2025.

Thu 6/57:12 pmSEA - STL

1 stop12h 00mFrontier

Sat 6/78:11 pmSTL - SEA

1 stop6h 23mFrontier

Deal found 4/29

$208

Sat 10/2512:40 amSEA - STL

1 stop6h 04mDelta

Tue 10/287:30 amSTL - SEA

1 stop9h 29mDelta

Deal found 4/29

$214

Mon 6/21:10 amSEA - STL

1 stop6h 44mAmerican Airlines

Sun 6/87:45 amSTL - SEA

1 stop9h 02mAmerican Airlines

Deal found 4/29

$223

Thu 6/56:04 pmSEA - STL

Nonstop4h 00mMultiple Airlines

Sat 6/78:11 pmSTL - SEA

1 stop6h 23mMultiple Airlines

Deal found 4/29

$243

Wed 5/286:04 pmSEA - STL

Nonstop4h 00mHawaiian Airlines

Wed 6/43:03 pmSTL - SEA

Nonstop4h 29mHawaiian Airlines

Deal found 4/29

$257

Tue 6/37:10 amSEA - STL

2 stops8h 40mSouthwest

Fri 6/67:15 pmSTL - SEA

1 stop8h 10mSouthwest

Deal found 4/28

$263

Tue 7/2911:59 pmPDX - STL

1 stop7h 32mUnited Airlines

Sun 8/35:00 amSTL - PDX

1 stop6h 42mUnited Airlines

Deal found 4/29

$264

Wed 6/116:04 pmSEA - STL

Nonstop4h 00mAlaska Airlines

Wed 6/187:32 pmSTL - SEA

Nonstop4h 28mAlaska Airlines

Deal found 4/29

$283

Sun 7/138:15 amSEA - STL

1 stop9h 16mSun Country Air

Sun 7/206:05 amSTL - SEA

1 stop18h 45mSun Country Air

Deal found 4/29

$385

Tue 6/311:59 pmPDX - STL

1 stop7h 00mAmerican Airlines

Fri 6/65:29 pmSTL - PDX

1 stop9h 07mAmerican Airlines

Deal found 4/29

$227

Fri 5/166:20 amPDX - STL

1 stop25h 39mFrontier

Sat 5/247:55 pmSTL - PDX

1 stop6h 22mFrontier

Deal found 4/27

$231

Sun 6/89:15 pmPDX - STL

1 stop9h 15mSouthwest

Wed 6/115:45 pmSTL - PDX

1 stop8h 10mSouthwest

Deal found 4/28

$263

Last-minute flights from Washington to St. Louis
Discover last-minute flight deals from Washington to St. Louis. Data last updated April 30, 2025 and is based on user searches.

Sun 5/49:35 amPDX - STL

1 stop12h 24mAlaska Airlines

Tue 5/136:30 amSTL - PDX

1 stop6h 22mAlaska Airlines

Deal found 4/29

$389

Sun 5/45:15 amPDX - STL

1 stop6h 13mDelta

Tue 5/137:19 pmSTL - PDX

1 stop6h 23mDelta

Deal found 4/29

$390

Mon 5/55:05 amSEA - STL

1 stop6h 25mSouthwest

Wed 5/76:05 pmSTL - SEA

1 stop6h 55mSouthwest

Deal found 4/28

$460

Tue 5/65:34 amGEG - STL

1 stop7h 53mAmerican Airlines

Fri 5/93:58 pmSTL - GEG

1 stop6h 55mAmerican Airlines

Deal found 4/29

$401

Wed 5/78:03 amSEA - STL

Nonstop4h 05mMultiple Airlines

Sat 5/108:15 pmSTL - SEA

1 stop6h 29mMultiple Airlines

Deal found 4/29

$343

Thu 5/86:20 amPDX - STL

1 stop24h 49mFrontier

Sun 5/119:55 pmSTL - PDX

1 stop19h 47mFrontier

Deal found 4/28

$241

Thu 5/81:10 amSEA - STL

1 stop6h 44mAmerican Airlines

Mon 5/125:00 amSTL - SEA

1 stop7h 15mAmerican Airlines

Deal found 4/28

$369

Thu 5/85:40 pmPDX - STL

3 stops24h 30mMultiple Airlines

Sun 5/111:00 pmSTL - PDX

3 stops29h 45mMultiple Airlines

Deal found 4/28

$424

Thu 5/88:03 amSEA - STL

Nonstop4h 05mAlaska Airlines

Mon 5/126:30 amSTL - SEA

Nonstop4h 24mAlaska Airlines

Deal found 4/29

$447

Thu 5/85:15 amSEA - STL

2 stops8h 32mUnited Airlines

Mon 5/126:11 pmSTL - SEA

1 stop8h 48mUnited Airlines

Deal found 4/28

$464

Fri 5/96:00 amSEA - STL

1 stop25h 59mFrontier

Mon 5/126:53 pmSTL - SEA

1 stop7h 51mFrontier

Deal found 4/29

$228

Fri 5/94:20 pmPDX - STL

1 stop5h 38mUnited Airlines

Sun 5/116:30 amSTL - PDX

2 stops8h 42mUnited Airlines

Deal found 4/29

$407

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 April 30, 2025.

Sun 5/46:20 amPDX - STL

1 stop24h 49mFrontier

Deal found 4/29

$96

Tue 5/66:00 amSEA - STL

1 stop25h 59mFrontier

Deal found 4/29

$106

Mon 6/211:11 pmPDX - STL

1 stop8h 24mDelta

Deal found 4/29

$114

Tue 5/276:04 pmSEA - STL

Nonstop4h 00mAlaska Airlines

Deal found 4/29

$119

Tue 6/35:30 amPDX - STL

2 stops9h 01mUnited Airlines

Deal found 4/29

$119

Fri 6/279:58 pmSEA - STL

1 stop9h 39mDelta

Deal found 4/29

$120

Wed 7/27:34 pmSEA - STL

1 stop7h 20mUnited Airlines

Deal found 4/29

$124

Wed 6/46:00 amSEA - STL

2 stops25h 15mSpirit Airlines

Deal found 4/29

$127

Thu 9/1111:59 pmSEA - STL

1 stop8h 20mAmerican Airlines

Deal found 4/29

$130

Mon 9/12:30 pmPDX - STL

1 stop7h 29mHawaiian Airlines

Deal found 4/29

$134

Mon 6/26:04 pmSEA - STL

Nonstop4h 00mHawaiian Airlines

Deal found 4/29

$139

Sat 7/1210:40 pmSEA - STL

1 stop6h 35mSouthwest

Deal found 4/29

$140

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

Thu 6/5

7:12 pm-9:12 am

1 stop12h 00m

Lambert-St Louis

Sat 6/7

8:11 pm-12:34 am

1 stop6h 23m

$208

SeattleSt. Louis

SEA - STL

SEASTL

Seattle/Tacoma Intl

Mon 6/2

1:10 am-9:54 am

1 stop6h 44m

Lambert-St Louis

Sun 6/8

7:45 am-2:47 pm

1 stop9h 02m

$223

PortlandSt. Louis

PDX - STL

PDXSTL

Portland

Tue 6/3

11:59 pm-8:59 am

1 stop7h 00m

Lambert-St Louis

Fri 6/6

5:29 pm-12:36 am

1 stop9h 07m

$227

PortlandSt. Louis

PDX - STL

PDXSTL

Portland

Fri 5/16

6:20 am-9:59 am

1 stop25h 39m

Lambert-St Louis

Sat 5/24

7:55 pm-12:17 am

1 stop6h 22m

$231

SeattleSt. Louis

SEA - STL

SEASTL

Seattle/Tacoma Intl

Thu 6/5

6:04 pm-12:04 am

Nonstop4h 00m

Lambert-St Louis

Sat 6/7

8:11 pm-12:34 am

1 stop6h 23m

$243

SeattleSt. Louis

SEA - STL

SEASTL

Seattle/Tacoma Intl

Fri 6/13

5:55 am-5:19 pm

1 stop9h 24m

Lambert-St Louis

Sat 6/21

7:15 am-2:45 pm

1 stop9h 30m

$244

SeattleSt. Louis

SEA - STL

SEASTL

Seattle/Tacoma Intl

Tue 5/13

5:15 am-3:47 pm

2 stops8h 32m

Lambert-St Louis

Wed 5/14

5:20 am-9:47 am

1 stop6h 27m

$252

SeattleSt. Louis

SEA - STL

SEASTL

Seattle/Tacoma Intl

Sat 6/7

8:45 am-2:35 pm

Nonstop3h 50m

Lambert-St Louis

Sun 6/15

6:20 pm-12:55 am

1 stop8h 35m

$259

SeattleSt. Louis

SEA - STL

SEASTL

Seattle/Tacoma Intl

Thu 5/29

6:04 pm-12:04 am

Nonstop4h 00m

Lambert-St Louis

Wed 6/4

6:18 pm-8:45 pm

Nonstop4h 27m

$263

PortlandSt. Louis

PDX - STL

PDXSTL

Portland

Sun 6/8

9:15 pm-8:30 am

1 stop9h 15m

Lambert-St Louis

Wed 6/11

5:45 pm-11:55 pm

1 stop8h 10m

$263

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/28

Showing 1-10 of 59 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 Monday (11 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (5 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 Alaska Airlines, Southwest 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.

Alaska Airlines

8.0

Very good

9,968 reviews

Reviews

1 / 20

10.0

Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Alaska Airlines

8.0

Very good

9,968 reviews

Alaska Airlines

8.0

Very good

9,968 reviews

Reviews

1 / 20

10.0

Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Southwest

8.0

Very good

4,295 reviews

Alaska Airlines

8.0

Very good

9,968 reviews

Reviews

1 / 20

10.0

Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Delta

8.0

Very good

7,936 reviews

Alaska Airlines

8.0

Very good

9,968 reviews

Reviews

1 / 20

10.0

Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Hawaiian Airlines

7.9

Good

2,402 reviews

Alaska Airlines

8.0

Very good

9,968 reviews

Reviews

1 / 20

10.0

Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

United Airlines

7.4

Good

8,696 reviews

Alaska Airlines

8.0

Very good

9,968 reviews

Reviews

1 / 20

10.0

Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

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 $96 on Frontier. Other airlines that offer cheap prices include Delta from $114 and Alaska Airlines from $119 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 Pasco Tri Cities - 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 American Airlines (92%), Alaska Airlines (90%) and Hawaiian Airlines (90%).
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 $530. The most popular route, (Seattle/Tacoma Intl - Lambert-St Louis), can usually be booked for $189.
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

Maryland Heights

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Collinsville

Wentzville

Eureka

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Festus

Glencoe

Alton

Farmington

O'Fallon

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Top 7 airlines flying from Washington to St. Louis

Airline	Cheapest	Average	Flexibility	On-time
Frontier	Cheapest$141	Average$244	FlexibilityNo cancel fee	On-time62%
American Airlines	Cheapest$186	Average$441	FlexibilityNo cancel fee	On-time71%
Southwest	Cheapest$188	Average$466	FlexibilityNo cancel fee	On-time63%
Delta	Cheapest$188	Average$378	FlexibilityNo cancel fee	On-timeN/A
United Airlines	Cheapest$216	Average$419	FlexibilityNo cancel fee	On-time69%
Alaska Airlines	Cheapest$236	Average$525	FlexibilityNo cancel fee	On-time75%
Hawaiian Airlines	Cheapest$237	Average$387	FlexibilityNo cancel fee	On-time85%

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$96+ 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 5/4. 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 April 30, 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 April 30, 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 April 30, 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 April 30, 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 April 30, 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 Alaska Airlines, Southwest 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?

Traveling to a place near Washington?

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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 April 30, 2025.