Find Cheap Flights from Washington Reagan-National to Lambert-St Louis (DCA - STL)

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Fri 1/19
Fri 1/26
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Good to Know

Low Season:
November
Best time to beat the crowds
2%
expected price decrease
High Season:
May
Most popular time to fly
6%
expected price increase
Average Price:
$365
(avg. price over the last 2 weeks)
Good Deal:
$275
or less (round trip)

When to Book Flights from Washington Reagan-National to Lambert-St Louis

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 $274 or less.
The cheapest flight from Washington Reagan-National to Lambert-St Louis was found 47 days before departure, on average.
Book at least 2 weeks before departure in order to get a below-average price.
High season is considered to be April, May and June. The cheapest month to fly is November.
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 Washington Reagan-National to Lambert-St Louis Flights

How long does a flight from Washington Reagan-National to Lambert-St Louis take?
An average nonstop flight takes 2h 25m, covering a distance of 717 miles.
How many flights are there between Washington Reagan-National and Lambert-St Louis?
There are 65 (nonstop) flights between Washington Reagan-National and Lambert-St Louis per week, averaging 9 per day.
Which airlines provide the cheapest flights from Washington Reagan-National to Lambert-St Louis?
In the past 3 days, the cheapest round-trip tickets were found on American Airlines ($207), Frontier ($240) and Multiple Airlines ($241).
Do I need a passport to fly between Washington Reagan-National and Lambert-St Louis?
No.
Which airlines fly most frequently between Washington Reagan-National and Lambert-St Louis?
American Airlines (5 times daily), Southwest (3 times daily) are the most frequent flyers on this route.
What’s the cheapest day of the week to fly Washington Reagan-National to Lambert-St Louis?
For Washington Reagan-National to Lambert-St Louis, Saturday is the cheapest day to fly on average and Thursday is the most expensive. Flying from Lambert-St Louis back to Washington Reagan-National, the best deals are generally found on Sunday, with Monday being the most expensive.

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

Airports
Origin
Washington
$207
only
$207
Destination
St. Louis
$207
only
$207
Sat, Mar 3
DCA
STL
2h 49m
Tue, Mar 6
STL
DCA
2h 28m
Trip: 4 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 10 reviews
Overall
7.3
Boarding
7.5
Comfort
7.1
Crew
7.8
Entertainment
6.7
Food
6.6
DCA
STL
Excellent 8.6

Flight was fine, crew was professional and thoughtful.

Crew seemed a bit out if sync....but only at first. Later, great.

LIM
CLO
Excellent 8.0

The entertainment screens did not work in my seat and my wife's seat.

DCA
STL
Okay 4.3

The plane has improved greatly with their comfort and leg space

With checking my luggage my bag fee was waived a total of seven times this trip because I'm a military wife to see my husband overseas who is serving a year in Saudi Arabi except this past time on October 2nd at DCA airport. Spoke with the Supervisor Ralph who stated it was against policy. How stringent is this policy if it was waived seven times previously? Policy needs to be reviewed with entire staff. I will no longer use American Airlines because their military convenience and policies no longer seem to favor the military. My husband also after speaking with him will also no longer use your airline including all his members he overseas when they return after their year tour.

PDX
DFW
Excellent 8.6

Seats smaller than before.

SJU
MIA
Okay 5.0

The crew are always excellent.

The comfort is horrible. Airline companies keep shrinking the seats and charging more. Also they keep serving less food. And flight changes.

Sat, Jan 27
DCA
STL
18h 12m
Sun, Feb 4
STL
DCA
16h 40m
Trip: 9 days
5.7OkayShow reviews
Overall 5.7 Okay
Based on 33581 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
OMA
MCO
Excellent 8.0

Nice flight. Arrived early.

4.99 for a can of coke???

MCO
OMA
Excellent 8.0

Nice flight. No issues. Flight staff was great.

Front desk check in guy in Orlando was a bit shady. Asked that we pay for our check-in bags with cash and wanted 10$ cash to put our seats together. I did not give him cash and had to ask for a reciept for the checked bags. We were 4 hours early for check in.

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.

ISP
TPA
Mediocre 2.3

In flight crew was cordial, warm, professional

Everything else was a sh*tshow: bad information, confused and angry employees, flight was 7-hours late

IAD
MCO
Mediocre 2.0

Unorganized, confusing boarding, confusion with seating, unbelievable lines while checking bags. Literally the only redeeming factor was the price.

Mon, Jan 29
DCA
STL
8h 48m
Sat, Feb 3
STL
DCA
6h 05m
Trip: 6 days
Overall 0.0 Poor
Based on 0 reviews
Fri, May 11
DCA
STL
4h 22m
Sun, May 13
STL
DCA
6h 01m
Trip: 3 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 53827 reviews
Overall
7.2
Boarding
7.4
Comfort
6.9
Crew
7.7
Entertainment
6.5
Food
6.4
BOS
EWR
Excellent 8.0

it was very punctual and easy to get around.

LAX
NRT
Good 6.0

The crews were very kind and friendly.

I bought a ticket for ANA but my flight was United. It was ok but I payed extra to get flight with ANA so I was disappointed a bit.

IAD
FRA
Good 7.0

One of the stewardess was very kind

The longer leg from US to Frankfurt was very difficult to sleep in because the mid cabin section light was not turned off

IAH
PNS
Mediocre 2.0

delayed in piecemeal by 6 hrs before move to another gate. than mechanical delay and then cancelled. Arrived at hotel after midnight without food or drink. Substitute flight was next day noon - original offer was for late afternoon flight! That flight had poor service. Attendant dawdled so there were no drinks served.

BOI
DEN
Mediocre 3.6

I found the reason for being late to be questionable They said heavy snow but as i flew in i looked out the window and saw all roads nicely cleared That does not happen in 3 hours

They did not get my liggage to the connecting flight And here i am in Ukraine with no winter clothes at 7 below 3 days later

Sat, Apr 14
DCA
STL
2h 27m
Mon, Apr 16
STL
DCA
2h 20m
Trip: 3 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 10 reviews
Overall
7.3
Boarding
7.5
Comfort
7.1
Crew
7.8
Entertainment
6.7
Food
6.6
CLT
LHR
Okay 5.0

We didn’t crash

Pushed out of my seat by huge man next to me who ate smelly crisps and farted most of the trip

LAX
MIA
Excellent 10.0

Courteous and efficient service, good communication from employees.

Rude passengers reclining all the way without notice.

LIM
CLO
Excellent 8.0

The entertainment screens did not work in my seat and my wife's seat.

SJU
MIA
Okay 5.0

The crew are always excellent.

The comfort is horrible. Airline companies keep shrinking the seats and charging more. Also they keep serving less food. And flight changes.

DCA
STL
Mediocre 2.0

Attempted to make my connection which was in another terminal. Could not get onboard as they shut the doors. My rerouted flight was in a different terminal. Overall a very disappointing travel experience.

Sat, May 12
DCA
STL
5h 47m
Wed, May 16
STL
DCA
1h 53m
Trip: 5 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 10 reviews
Overall
7.3
Boarding
7.5
Comfort
7.1
Crew
7.8
Entertainment
6.7
Food
6.6
CLT
LHR
Okay 5.0

We didn’t crash

Pushed out of my seat by huge man next to me who ate smelly crisps and farted most of the trip

LAX
MIA
Excellent 10.0

Courteous and efficient service, good communication from employees.

Rude passengers reclining all the way without notice.

LIM
CLO
Excellent 8.0

The entertainment screens did not work in my seat and my wife's seat.

ONT
DFW
Excellent 10.0

Everything was great

SJU
MIA
Okay 5.0

The crew are always excellent.

The comfort is horrible. Airline companies keep shrinking the seats and charging more. Also they keep serving less food. And flight changes.

Tue, Feb 6
DCA
STL
2h 27m
Wed, Feb 7
STL
DCA
2h 23m
Trip: 2 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 10 reviews
Overall
7.3
Boarding
7.5
Comfort
7.1
Crew
7.8
Entertainment
6.7
Food
6.6
LIM
CLO
Excellent 8.0

The entertainment screens did not work in my seat and my wife's seat.

CLT
LHR
Okay 5.0

We didn’t crash

Pushed out of my seat by huge man next to me who ate smelly crisps and farted most of the trip

MIA
GUA
Mediocre 2.3

Nothing, American Airlines is the worst major airline now.

The staff in Miami Airport is really bad, worst attitude I have seen, old planes, not comfortable, definetly the worst major airline now.

ONT
DFW
Excellent 10.0

Everything was great

DCA
STL
Mediocre 2.0

Attempted to make my connection which was in another terminal. Could not get onboard as they shut the doors. My rerouted flight was in a different terminal. Overall a very disappointing travel experience.

Thu, Apr 5
DCA
STL
4h 31m
Mon, Apr 9
STL
DCA
6h 00m
Trip: 5 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 10 reviews
Overall
7.3
Boarding
7.5
Comfort
7.1
Crew
7.8
Entertainment
6.7
Food
6.6
DCA
STL
Okay 4.3

The plane has improved greatly with their comfort and leg space

With checking my luggage my bag fee was waived a total of seven times this trip because I'm a military wife to see my husband overseas who is serving a year in Saudi Arabi except this past time on October 2nd at DCA airport. Spoke with the Supervisor Ralph who stated it was against policy. How stringent is this policy if it was waived seven times previously? Policy needs to be reviewed with entire staff. I will no longer use American Airlines because their military convenience and policies no longer seem to favor the military. My husband also after speaking with him will also no longer use your airline including all his members he overseas when they return after their year tour.

SJU
MIA
Okay 5.0

The crew are always excellent.

The comfort is horrible. Airline companies keep shrinking the seats and charging more. Also they keep serving less food. And flight changes.

ORD
LGA
Okay 5.3

Gates, delays, changes

Boarding was a mess. No opportunity for priority boarding. Flight crew no help. Just another hum drum experience.

ORD
MCO
Okay 4.6

American continues to surprise through their lack of consideration and cheapness Prefer to have seat empty on the front rather than move passengers that are loyal frequent flyers. The most important point for American is you have to pay for everything including for flight status. No longer miles flew but how much you pay them

LAX
MIA
Excellent 10.0

Courteous and efficient service, good communication from employees.

Rude passengers reclining all the way without notice.

Thu, Mar 22
DCA
STL
4h 36m
Sun, Mar 25
STL
DCA
3h 44m
Trip: 4 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 10 reviews
Overall
7.3
Boarding
7.5
Comfort
7.1
Crew
7.8
Entertainment
6.7
Food
6.6
LAX
MIA
Excellent 10.0

Courteous and efficient service, good communication from employees.

Rude passengers reclining all the way without notice.

ORD
LGA
Okay 5.3

Gates, delays, changes

Boarding was a mess. No opportunity for priority boarding. Flight crew no help. Just another hum drum experience.

ONT
DFW
Excellent 10.0

Everything was great

DCA
STL
Okay 4.3

The plane has improved greatly with their comfort and leg space

With checking my luggage my bag fee was waived a total of seven times this trip because I'm a military wife to see my husband overseas who is serving a year in Saudi Arabi except this past time on October 2nd at DCA airport. Spoke with the Supervisor Ralph who stated it was against policy. How stringent is this policy if it was waived seven times previously? Policy needs to be reviewed with entire staff. I will no longer use American Airlines because their military convenience and policies no longer seem to favor the military. My husband also after speaking with him will also no longer use your airline including all his members he overseas when they return after their year tour.

ORD
MCO
Okay 4.6

American continues to surprise through their lack of consideration and cheapness Prefer to have seat empty on the front rather than move passengers that are loyal frequent flyers. The most important point for American is you have to pay for everything including for flight status. No longer miles flew but how much you pay them

Sat, Jun 16
DCA
STL
2h 25m
Fri, Jun 22
STL
DCA
2h 01m
Trip: 7 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 10 reviews
Overall
7.3
Boarding
7.5
Comfort
7.1
Crew
7.8
Entertainment
6.7
Food
6.6
PDX
DFW
Excellent 8.6

Seats smaller than before.

DCA
STL
Okay 4.3

The plane has improved greatly with their comfort and leg space

With checking my luggage my bag fee was waived a total of seven times this trip because I'm a military wife to see my husband overseas who is serving a year in Saudi Arabi except this past time on October 2nd at DCA airport. Spoke with the Supervisor Ralph who stated it was against policy. How stringent is this policy if it was waived seven times previously? Policy needs to be reviewed with entire staff. I will no longer use American Airlines because their military convenience and policies no longer seem to favor the military. My husband also after speaking with him will also no longer use your airline including all his members he overseas when they return after their year tour.

ONT
DFW
Excellent 10.0

Everything was great

ORD
LGA
Okay 5.3

Gates, delays, changes

Boarding was a mess. No opportunity for priority boarding. Flight crew no help. Just another hum drum experience.

LAX
MIA
Excellent 10.0

Courteous and efficient service, good communication from employees.

Rude passengers reclining all the way without notice.

Sat, Jul 28
DCA
STL
2h 25m
Mon, Jul 30
STL
DCA
2h 01m
Trip: 3 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 10 reviews
Overall
7.3
Boarding
7.5
Comfort
7.1
Crew
7.8
Entertainment
6.7
Food
6.6
PDX
DFW
Excellent 8.6

Seats smaller than before.

DCA
STL
Excellent 8.6

Flight was fine, crew was professional and thoughtful.

Crew seemed a bit out if sync....but only at first. Later, great.

CLT
LHR
Okay 5.0

We didn’t crash

Pushed out of my seat by huge man next to me who ate smelly crisps and farted most of the trip

DCA
STL
Okay 4.3

The plane has improved greatly with their comfort and leg space

With checking my luggage my bag fee was waived a total of seven times this trip because I'm a military wife to see my husband overseas who is serving a year in Saudi Arabi except this past time on October 2nd at DCA airport. Spoke with the Supervisor Ralph who stated it was against policy. How stringent is this policy if it was waived seven times previously? Policy needs to be reviewed with entire staff. I will no longer use American Airlines because their military convenience and policies no longer seem to favor the military. My husband also after speaking with him will also no longer use your airline including all his members he overseas when they return after their year tour.

DCA
STL
Mediocre 2.0

Attempted to make my connection which was in another terminal. Could not get onboard as they shut the doors. My rerouted flight was in a different terminal. Overall a very disappointing travel experience.

Thu, Jan 25
DCA
STL
2h 54m
Sun, Jan 28
STL
DCA
2h 23m
Trip: 4 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 10 reviews
Overall
7.3
Boarding
7.5
Comfort
7.1
Crew
7.8
Entertainment
6.7
Food
6.6
ONT
DFW
Excellent 10.0

Everything was great

MIA
GUA
Mediocre 2.3

Nothing, American Airlines is the worst major airline now.

The staff in Miami Airport is really bad, worst attitude I have seen, old planes, not comfortable, definetly the worst major airline now.

DCA
STL
Excellent 8.6

Flight was fine, crew was professional and thoughtful.

Crew seemed a bit out if sync....but only at first. Later, great.

CLT
LHR
Okay 5.0

We didn’t crash

Pushed out of my seat by huge man next to me who ate smelly crisps and farted most of the trip

SJU
MIA
Okay 5.0

The crew are always excellent.

The comfort is horrible. Airline companies keep shrinking the seats and charging more. Also they keep serving less food. And flight changes.

Show more results

Washington Reagan-National to Lambert-St Louis Flight Information

Avg. Flight Duration 2h 25m
Flights Arrive in Lambert-St Louis
Flights Depart from Washington Reagan-National
Flight Price $207
Distance 717 miles
Airlines American Airlines, Frontier, United
*
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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.