Find Cheap Flights from Lambert-St Louis to Washington (STL - WAS)

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Good to Know

Low Season:
February
Best time to beat the crowds
2%
expected price decrease
High Season:
January
Most popular time to fly
3%
expected price increase
Average Price:
$301
(avg. price over the last 2 weeks)
Good Deal:
$207
or less (round trip)

When to Book Flights from Lambert-St Louis to Washington

Average price per month
Flight prices as travel date approaches
-1 day
-2 days

Top tips for Finding a Cheap Flight

Looking for a cheap flight? 25% of our users found flights on this route for $206 or less.
The cheapest flight from Lambert-St Louis to Washington was found 52 days before departure, on average.
Book at least 3 weeks before departure in order to get a below-average price.
Morning departure is around 9% more expensive than an evening flight, on average*.
*Average of the lowest prices shown in KAYAK’s search results for departures within the next 30 days

FAQs for Booking Lambert-St Louis to Washington Flights

How long does a flight from Lambert-St Louis to Washington take?
An average nonstop flight takes 1h 59m, covering a distance of 717 miles.
How many flights are there between Lambert-St Louis and Washington?
There are 256 (nonstop) flights between Lambert-St Louis and Washington per week, averaging 37 per day.
Which airlines provide the cheapest flights from Lambert-St Louis to Washington?
In the past 3 days, the cheapest round-trip tickets were found on United ($207), American Airlines ($207) and Multiple Airlines ($209).
Do I need a passport to fly between Lambert-St Louis and Washington?
No.
Which airlines fly most frequently between Lambert-St Louis and Washington?
Southwest (7 times daily), United (7 times daily), American Airlines (6 times daily) are the most frequent flyers on this route.
What’s the cheapest day of the week to fly Lambert-St Louis to Washington?
For Lambert-St Louis to Washington, Saturday is the cheapest day to fly on average and Friday is the most expensive. Flying from Washington back to Lambert-St Louis, the best deals are generally found on Monday, with Saturday being the most expensive.

Book cheap flights from Lambert-St Louis to Washington (round-trip)

Airports
Origin
St. Louis
$207
only
$207
Destination
Washington
$207
only
$207
$207
only
$207
Sat, Feb 10
STL
IAD
1h 59m
Mon, Feb 12
IAD
STL
2h 24m
Trip: 3 days
7.3GoodShow reviews
Overall 7.3 Good
Based on 22 reviews
Overall
7.2
Boarding
7.4
Comfort
6.9
Crew
7.7
Entertainment
6.5
Food
6.4
SFO
LAS
Excellent 8.0

On time

STL
IAD
Good 6.0

Luggage compartment too small even for a rolling laptop bag

STL
IAD
Good 6.0

First flight went great.

JAX
ORD
Mediocre 3.6

The credit was polite, hat was about it

We were delayed coming out bc the plane needed de-icing... IN JACKSONVILLE, but they were unable to get manager approval for de-icing and then the truck was out of fuel. Finally, the pilot moved the plane into the sun (which should have happened much sooner). During the flight, the cabin temperature dropped to low 60s and everyone was freezing.

STL
IAD
Excellent 10.0

My wife was happy

Fixing my own supper

Wed, Mar 21
STL
DCA
2h 28m
Mon, Mar 26
DCA
STL
2h 46m
Trip: 6 days
8.7ExcellentShow reviews
Overall 8.7 Excellent
Based on 9 reviews
Overall
7.3
Boarding
7.5
Comfort
7.1
Crew
7.8
Entertainment
6.7
Food
6.6
DFW
ONT
Excellent 10.0

Planes were punctual and smooth flight

BWI
ORD
Mediocre 2.0

Not at all

I made the reservation without knowing that Americans airlines has a boarding number 9 where you are NOT allowed any carry on. Awful lesson. You are given the worst seat and you cannot store any thing in the overhead compartment. Or there make you pay $60..

PVD
DCA
Excellent 10.0

Very courteous crew.pilot was amazing!! Landed in tough wind

Turbulence

MIA
PHL
Excellent 10.0

Great fight ! The ground crew in Miami were so helpful

LEX
DFW
Excellent 10.0

planes were on time, good flight

Tue, Mar 27
STL
DCA
4h 19m
Wed, Apr 4
DCA
STL
6h 29m
Trip: 9 days
Overall 0.0 Poor
Based on 0 reviews
Wed, Jan 31
STL
DCA
11h 56m
Sat, Feb 3
DCA
STL
18h 12m
Trip: 4 days
5.7OkayShow reviews
Overall 5.7 Okay
Based on 33594 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
MCI
TPA
Excellent 8.3

Crew was ameable and helpful.

A passenger that was intoxicated and incredibly loud. It was ok though, she was on her way to a cruise.

DCA
DEN
Okay 4.0

The crew was really nice.

So many delays. My flight was eventually cancelled on Friday and was rescheduled for Saturday. The Saturday flight was delayed. All in all, i wasted a vacation day on Friday, I paid for a hotel in Denver for Friday night that I was not able to get refunded, I missed out on a day in Denver. It was a huge bummer.

SJC
LAS
Mediocre 2.0

couldn't change my reservation even though I made it less than 24 hours

The service

MIA
LGA
Mediocre 2.0

if you have a hard engagement that you have to make, i hate to say it, but use a bigger airline. These guys are not dependable nyc -> miami. Have had 2 flights cancelled and delayed over 6 hours in the last 6 months. Only one scheduled flight everyday. If you can risk it, fine, but otherwise not worth it.

DEN
SNA
Good 6.6

Basic service but smooth.

No food or drinks.

Sun, Mar 25
STL
DCA
5h 10m
Thu, Mar 29
DCA
STL
5h 08m
Trip: 5 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 15342 reviews
Overall
8.0
Boarding
8.1
Comfort
7.7
Crew
8.4
Entertainment
7.5
Food
7.3
ANC
SEA
Excellent 10.0

Delta has great seats, friendly employees and engaged managers and pilots. Even their customer service Center reaches out to help on suggestions. I am flying to Portland for School over 40 round trips and I am saving $4,000 vs Alaska Air. Plus I get miles and discounts with the Delta Amex Card. I am very pleased.

I don’t like harsh change in schedule fees but it forces me to plan. I wish the Seattle to Portland Eve flight landed in time to catch Portland Rail system at 11:50 PM

ATL
SEA
Excellent 8.3

Great movie selection

LAX
DEN
Excellent 10.0

Excellent piloting and cabin crew.

LGA
PIT
Excellent 10.0

Our original flight was delayed and Marika, at the Delta gate of another flight to the same city, was able to get us on the flight that was going to our city. We were so grateful to get home before the winter storm! We appreciate your staff and the help their quick, efficient manner to get us on a new flight!

DTW
ATL
Excellent 8.0

I love Delta, especially their newer planes that have screens in the backs of headrests and free movies.

Leg room is never enough. I'm 6'1".

Mon, Mar 12
STL
IAD
2h 00m
Wed, Mar 14
IAD
STL
2h 20m
Trip: 3 days
7.3GoodShow reviews
Overall 7.3 Good
Based on 22 reviews
Overall
7.2
Boarding
7.4
Comfort
6.9
Crew
7.7
Entertainment
6.5
Food
6.4
STL
IAD
Good 6.0

First flight went great.

EWR
IND
Good 7.0

Staff was excellent. From check in to flight crew. On time and earlier arrival. Unexpected.

Unable to bring some carryon. No coffee available on board.

TPA
ORD
Excellent 8.0

The crew were always really helpful and kind. They were happy to speak English or Japanese.

Despite stitching when I could and as soon as I could. Lower back buttocks hurt pretty bad half way through the flight. This is a knock on the airline industry and not so much ANA. Comfort levels start diminish when you try to squeeze as many seats as you can into airplane. Especially, for people like me who are at least 6' tall. Also, the food was very meh. This was surprising because all my other experiences with ANA were quite the opposite.

STL
IAD
Excellent 8.0

Gate agent was great.... Have me an edit row seat. But my 90 minute flight from St Louis, led to a 40 minute wait for my bag

STL
IAD
Good 6.0

Fast

Small plane

Wed, Apr 4
STL
DCA
2h 09m
Wed, Apr 11
DCA
STL
2h 36m
Trip: 8 days
8.7ExcellentShow reviews
Overall 8.7 Excellent
Based on 9 reviews
Overall
7.3
Boarding
7.5
Comfort
7.1
Crew
7.8
Entertainment
6.7
Food
6.6
PVD
DCA
Excellent 10.0

Very courteous crew.pilot was amazing!! Landed in tough wind

Turbulence

LHR
ORD
Excellent 10.0

Friendly staff, good entertainment option, good food.

I reserved a special solo seat for extra $80 and got charged for it but did not get that seat. I was seated in a window side seat with another passenger.

BWI
ORD
Mediocre 2.0

Not at all

I made the reservation without knowing that Americans airlines has a boarding number 9 where you are NOT allowed any carry on. Awful lesson. You are given the worst seat and you cannot store any thing in the overhead compartment. Or there make you pay $60..

DFW
ONT
Excellent 10.0

Planes were punctual and smooth flight

MIA
PHL
Excellent 10.0

Great fight ! The ground crew in Miami were so helpful

Wed, Feb 14
STL
DCA
6h 53m
Sun, Feb 18
DCA
STL
7h 32m
Trip: 5 days
Overall 0.0 Poor
Based on 0 reviews
Tue, Mar 27
STL
IAD
2h 00m
Mon, Apr 2
IAD
STL
2h 20m
Trip: 7 days
7.3GoodShow reviews
Overall 7.3 Good
Based on 22 reviews
Overall
7.2
Boarding
7.4
Comfort
6.9
Crew
7.7
Entertainment
6.5
Food
6.4
STL
IAD
Mediocre 2.0

Our flight was delayed. We did not make the connecting flight. They would not provide us another flight same day or money back or money for the rental that we required.

TPA
ORD
Excellent 8.0

The crew were always really helpful and kind. They were happy to speak English or Japanese.

Despite stitching when I could and as soon as I could. Lower back buttocks hurt pretty bad half way through the flight. This is a knock on the airline industry and not so much ANA. Comfort levels start diminish when you try to squeeze as many seats as you can into airplane. Especially, for people like me who are at least 6' tall. Also, the food was very meh. This was surprising because all my other experiences with ANA were quite the opposite.

STL
IAD
Good 6.0

First flight went great.

STL
IAD
Good 6.6

The crew on the plane was nice and helpful.

I understand pretzels for the most part are allergy friendly however I have a gluten intolerance so I couldn’t have them and i couldn’t download the United app because there wasn’t WiFi available anywhere in the terminal and there weren’t any charging stations.

EWR
IND
Good 7.0

Staff was excellent. From check in to flight crew. On time and earlier arrival. Unexpected.

Unable to bring some carryon. No coffee available on board.

Tue, Apr 3
STL
DCA
2h 09m
Thu, Apr 5
DCA
STL
4h 31m
Trip: 3 days
8.7ExcellentShow reviews
Overall 8.7 Excellent
Based on 9 reviews
Overall
7.3
Boarding
7.5
Comfort
7.1
Crew
7.8
Entertainment
6.7
Food
6.6
MIA
PHL
Excellent 10.0

Great fight ! The ground crew in Miami were so helpful

LEX
DFW
Excellent 10.0

planes were on time, good flight

DFW
ONT
Excellent 10.0

Planes were punctual and smooth flight

ABQ
PHX
Good 7.3

The information that was given was awful. Why would AA send a broken plane to ABW?

STL
DCA
Excellent 10.0

Plane took off and landed at the exact time Seats plenty a room .

Sat, May 5
STL
IAD
2h 00m
Tue, May 8
IAD
STL
2h 12m
Trip: 4 days
7.3GoodShow reviews
Overall 7.3 Good
Based on 22 reviews
Overall
7.2
Boarding
7.4
Comfort
6.9
Crew
7.7
Entertainment
6.5
Food
6.4
JAX
ORD
Mediocre 3.6

The credit was polite, hat was about it

We were delayed coming out bc the plane needed de-icing... IN JACKSONVILLE, but they were unable to get manager approval for de-icing and then the truck was out of fuel. Finally, the pilot moved the plane into the sun (which should have happened much sooner). During the flight, the cabin temperature dropped to low 60s and everyone was freezing.

EWR
IND
Good 7.0

Staff was excellent. From check in to flight crew. On time and earlier arrival. Unexpected.

Unable to bring some carryon. No coffee available on board.

STL
IAD
Good 6.0

First flight went great.

STL
IAD
Good 6.0

Departed close to on-time. And as a pilot myself any landing you walk away from is a good landing.

Boarding nearly last there was no room in the overhead compartments. This aircraft is tiny and with my small bag on the floor my feet rested on top of my bag making it cramped.

STL
IAD
Excellent 8.0

Gate agent was great.... Have me an edit row seat. But my 90 minute flight from St Louis, led to a 40 minute wait for my bag

Fri, Feb 23
STL
DCA
2h 19m
Mon, Feb 26
DCA
STL
2h 47m
Trip: 4 days
8.7ExcellentShow reviews
Overall 8.7 Excellent
Based on 9 reviews
Overall
7.3
Boarding
7.5
Comfort
7.1
Crew
7.8
Entertainment
6.7
Food
6.6
MIA
PHL
Excellent 10.0

Great fight ! The ground crew in Miami were so helpful

YYZ
MIA
Excellent 8.3

Boarding was a breeze

N/A

PVD
DCA
Excellent 10.0

Very courteous crew.pilot was amazing!! Landed in tough wind

Turbulence

STL
DCA
Excellent 10.0

All great.

ABQ
PHX
Good 7.3

The information that was given was awful. Why would AA send a broken plane to ABW?

Mon, May 14
STL
DCA
6h 01m
Sat, May 19
DCA
STL
4h 32m
Trip: 6 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 53874 reviews
Overall
7.2
Boarding
7.4
Comfort
6.9
Crew
7.7
Entertainment
6.5
Food
6.4
EWR
IND
Good 7.0

Staff was excellent. From check in to flight crew. On time and earlier arrival. Unexpected.

Unable to bring some carryon. No coffee available on board.

MEL
LAX
Okay 5.6

The cabin crew were very kind and helpful, always smiling and happy to be of service.

It wasn't Air New Zealand, but operated by United Airlines. The plane was uncomfortable, and the entertainment system seemed clunky, unintuitive and outdated. The selection of entertainment, poor in quality, I thought. There were lost of things to watch, but a lot of it was of poor quality. The food was acceptable, but again, it felt like it was done on-the-cheap, and I was eating airline food a la 20 years ago.

MBJ
EWR
Okay 5.6

Not a whole lot, the flight and comfort were fine. The flight attendants were great.

There was NO entertainment on board unless you paid $7.99, including watching the progress of the flight from Montego Bay, Jamaica to Newark.

IAD
CDG
Excellent 10.0

Got a window seat and had an amazing crew. Everything went smoothly! Dinner and breakfast served!

Everything was perfect!

ORD
SAN
Okay 4.3

On time departure

No complementary food. Old plane, no great entertainment options (should also have subtitles for hard of hearing). Terminal boarding area was too cold.

Mon, Mar 26
STL
DCA
4h 11m
Sat, Mar 31
DCA
STL
6h 50m
Trip: 6 days
8.7ExcellentShow reviews
Overall 8.7 Excellent
Based on 9 reviews
Overall
7.3
Boarding
7.5
Comfort
7.1
Crew
7.8
Entertainment
6.7
Food
6.6
PVD
DCA
Excellent 10.0

Very courteous crew.pilot was amazing!! Landed in tough wind

Turbulence

LAX
YYZ
Mediocre 2.0

The layover was too short we missed our connecting flight. How did Kayak even allow us to book such an itinerary. Staff with the airline was also rude! Never will I book with site ever again!Rude

MIA
PHL
Excellent 10.0

Great fight ! The ground crew in Miami were so helpful

YYZ
MIA
Excellent 8.3

Boarding was a breeze

N/A

STL
DCA
Excellent 10.0

All great.

Tue, Apr 3
STL
IAD
2h 00m
Thu, Apr 5
IAD
STL
2h 29m
Trip: 3 days
7.3GoodShow reviews
Overall 7.3 Good
Based on 22 reviews
Overall
7.2
Boarding
7.4
Comfort
6.9
Crew
7.7
Entertainment
6.5
Food
6.4
STL
IAD
Mediocre 2.0

Our flight was delayed. We did not make the connecting flight. They would not provide us another flight same day or money back or money for the rental that we required.

STL
IAD
Excellent 8.0

Gate agent was great.... Have me an edit row seat. But my 90 minute flight from St Louis, led to a 40 minute wait for my bag

STL
IAD
Good 6.0

Departed close to on-time. And as a pilot myself any landing you walk away from is a good landing.

Boarding nearly last there was no room in the overhead compartments. This aircraft is tiny and with my small bag on the floor my feet rested on top of my bag making it cramped.

STL
IAD
Good 6.0

Fast

Small plane

STL
IAD
Good 6.0

Luggage compartment too small even for a rolling laptop bag

Fri, Jan 26
STL
DCA
6h 53m
Sun, Jan 28
DCA
STL
21h 48m
Trip: 3 days
5.7OkayShow reviews
Overall 5.7 Okay
Based on 33594 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
CLE
MCO
Mediocre 2.3

enough space to move around

I dislike that once I got to the airport in Cleveland before boarding schools go to Orlando they charge me $45 for a suitcase that if I would have painted with my ticket it would have been $25 and that's what it told me I had to pay at the airport if I wasn't going to pay it with my ticket it was only $25 not $45 so they charge me $45 and then when I went to board the plane to go in they tried to charge me $45 for a backpack that fits under the seat and wasn't a carry on then they charge like $3 for a can of soda I don't think I'll ever recommend Frontier to anyone or I would never travel again with them that is ridiculous being a disabled person and being taken advantage of is unacceptable

SJC
LAS
Mediocre 2.0

couldn't change my reservation even though I made it less than 24 hours

The service

ONT
AUS
Excellent 9.5

The crew were kind and efficient and the planes were clean and well maintained.

No entertainment on the flights, but that is to be expected for the price.

SFO
ATL
Mediocre 2.0

Nothing

Everything was horrible!

ATL
LAS
Good 6.0

The crew was very friendly.

The seats were close together and not very comfortable. No entertainment, for example a movie for a 4 hour flight. You have to pay for everything. Only thing complimentary is water.

Mon, May 14
STL
IAD
3h 54m
Sat, May 19
IAD
STL
2h 12m
Trip: 6 days
7.3GoodShow reviews
Overall 7.3 Good
Based on 22 reviews
Overall
7.2
Boarding
7.4
Comfort
6.9
Crew
7.7
Entertainment
6.5
Food
6.4
STL
IAD
Good 6.6

The crew on the plane was nice and helpful.

I understand pretzels for the most part are allergy friendly however I have a gluten intolerance so I couldn’t have them and i couldn’t download the United app because there wasn’t WiFi available anywhere in the terminal and there weren’t any charging stations.

SFO
LAS
Excellent 8.0

On time

EWR
IND
Good 7.0

Staff was excellent. From check in to flight crew. On time and earlier arrival. Unexpected.

Unable to bring some carryon. No coffee available on board.

STL
IAD
Good 6.0

Fast

Small plane

STL
IAD
Good 6.0

Luggage compartment too small even for a rolling laptop bag

Fri, Jun 22
STL
DCA
2h 01m
Tue, Jun 26
DCA
STL
2h 25m
Trip: 5 days
8.7ExcellentShow reviews
Overall 8.7 Excellent
Based on 9 reviews
Overall
7.3
Boarding
7.5
Comfort
7.1
Crew
7.8
Entertainment
6.7
Food
6.6
YYZ
MIA
Excellent 8.3

Boarding was a breeze

N/A

STL
DCA
Excellent 10.0

Plane took off and landed at the exact time Seats plenty a room .

ABQ
PHX
Good 7.3

The information that was given was awful. Why would AA send a broken plane to ABW?

PVD
DCA
Excellent 10.0

Very courteous crew.pilot was amazing!! Landed in tough wind

Turbulence

LEX
DFW
Excellent 10.0

planes were on time, good flight

Wed, Jan 31
STL
DCA
6h 53m
Thu, Feb 1
DCA
STL
4h 39m
Trip: 2 days
Overall 0.0 Poor
Based on 0 reviews
Wed, Jun 27
STL
IAD
2h 00m
Tue, Jul 3
IAD
STL
2h 23m
Trip: 7 days
7.3GoodShow reviews
Overall 7.3 Good
Based on 22 reviews
Overall
7.2
Boarding
7.4
Comfort
6.9
Crew
7.7
Entertainment
6.5
Food
6.4
STL
IAD
Excellent 10.0

My wife was happy

Fixing my own supper

STL
IAD
Excellent 8.0

Gate agent was great.... Have me an edit row seat. But my 90 minute flight from St Louis, led to a 40 minute wait for my bag

STL
IAD
Good 6.0

Departed close to on-time. And as a pilot myself any landing you walk away from is a good landing.

Boarding nearly last there was no room in the overhead compartments. This aircraft is tiny and with my small bag on the floor my feet rested on top of my bag making it cramped.

STL
IAD
Mediocre 2.0

Our flight was delayed. We did not make the connecting flight. They would not provide us another flight same day or money back or money for the rental that we required.

SFO
LAS
Excellent 8.0

On time

Show more results

Lambert-St Louis to Washington Flight Information

Avg. Flight Duration 2h 16m
Flights Arrive in Washington
Flights Depart from Lambert-St Louis
Flight Price $207
Distance 717 miles
Airlines United, American Airlines, Frontier, Delta
*
Prices are per person and are for e–tickets and include all taxes & fees in USD.

We attempt to get accurate prices, however, prices are not guaranteed.

Here's why:

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Why aren’t prices accurate 100% of the time?
Prices on airline seats, hotel rooms and car rentals can change frequently. Several people may also be trying to buy the same travel option simultaneously. As a result, you may find, on occasion, that certain prices are no longer available.

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The fares displayed include all taxes and fees for economy class travel and were found by the provider in the last 72 hours. Seats are limited and may not be available on all flights and days. Fares are subject to change and may not be available on all flights or dates of travel. Some carriers charge additional fees for extra checked bags. Please check the carriers' sites.