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Cheap flights from Hartford to St. Louis from $102

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Hartford to St. Louis departing on 4/26. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Find the cheapest flights from Hartford to St. Louis

Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
9:21 pm - 7:51 am
BDL
-
STL
11h 30m
1 stop
Frontier Logo
8:23 pm - 2:49 pm
STL
-
BDL
17h 26m
1 stop
$211Frontier
Thu, Apr 9 - Wed, Apr 15
Frontier Logo
8:42 pm - 11:19 pm
BDL
-
STL
27h 37m
1 stop
Frontier Logo
4:59 pm - 4:57 pm
STL
-
BDL
22h 58m
1 stop
$216Frontier
Fri, Apr 24 - Fri, May 1
Frontier Logo
9:21 pm - 7:51 am
BDL
-
STL
11h 30m
1 stop
Frontier Logo
8:41 am - 9:08 pm
STL
-
BDL
11h 27m
1 stop
$235Frontier
Thu, Apr 9 - Mon, Apr 13
Frontier Logo
5:44 pm - 12:21 am
BDL
-
STL
7h 37m
1 stop
Frontier Logo
4:19 pm - 4:45 pm
STL
-
BDL
23h 26m
1 stop
$236Frontier
Mon, May 18 - Thu, May 21
Frontier Logo
2:55 pm - 7:51 am
BDL
-
STL
17h 56m
2 stops
Frontier Logo
8:23 pm - 2:49 pm
STL
-
BDL
17h 26m
1 stop
$241Frontier
Thu, Apr 9 - Wed, Apr 15
Frontier Logo
3:50 pm - 6:50 am
BDL
-
STL
16h 00m
1 stop
Frontier Logo
8:23 pm - 2:49 pm
STL
-
BDL
17h 26m
1 stop
$243Frontier
Sun, Apr 26 - Wed, Apr 29
Frontier Logo
6:29 pm - 11:25 pm
BDL
-
STL
29h 56m
1 stop
Frontier Logo
8:23 pm - 2:49 pm
STL
-
BDL
17h 26m
1 stop
$244Frontier
Tue, Apr 7 - Wed, Apr 15
Frontier Logo
9:21 pm - 7:51 am
BDL
-
STL
11h 30m
1 stop
Frontier Logo
8:41 am - 9:08 pm
STL
-
BDL
11h 27m
1 stop
$246Frontier
Thu, Apr 9 - Mon, Apr 13
Frontier Logo
3:50 pm - 6:50 am
BDL
-
STL
16h 00m
1 stop
Frontier Logo
8:23 pm - 2:13 pm
STL
-
BDL
16h 50m
1 stop
$250Frontier
Thu, Apr 30 - Sat, May 2
American Airlines Logo
7:19 pm - 11:56 pm
BDL
-
STL
5h 37m
1 stop
American Airlines Logo
6:12 pm - 12:55 am
STL
-
BDL
5h 43m
1 stop
$263American Airlines
Wed, May 20 - Tue, May 26

Southwest flights from Hartford to St. Louis

Our best Southwest deals on Hartford to St. Louis flight tickets
Southwest
Apr 21
BDL4:05 pmHartford Bradley Intl
6h 00m
1 stop
STL9:05 pmLambert-St Louis
Apr 28
STL10:25 amLambert-St Louis
4h 35m
1 stop
BDL4:00 pmHartford Bradley Intl
$264
Southwest
Jun 3
BDL4:05 pmHartford Bradley Intl
6h 00m
1 stop
STL9:05 pmLambert-St Louis
Jun 9
STL3:15 pmLambert-St Louis
6h 30m
2 stops
BDL10:45 pmHartford Bradley Intl
$268
Southwest
Apr 21
BDL4:05 pmHartford Bradley Intl
7h 05m
2 stops
STL10:10 pmLambert-St Louis
Apr 28
STL10:25 amLambert-St Louis
4h 35m
1 stop
BDL4:00 pmHartford Bradley Intl
$270

Frontier flights from Hartford to St. Louis

Our best Frontier deals on Hartford to St. Louis flight tickets
Frontier
Apr 9
BDL9:21 pmHartford Bradley Intl
11h 30m
1 stop
STL7:51 amLambert-St Louis
Apr 15
STL8:23 pmLambert-St Louis
17h 26m
1 stop
BDL2:49 pmHartford Bradley Intl
$211
Frontier
Apr 24
BDL8:42 pmHartford Bradley Intl
27h 37m
1 stop
STL11:19 pmLambert-St Louis
May 1
STL4:59 pmLambert-St Louis
22h 58m
1 stop
BDL4:57 pmHartford Bradley Intl
$216
Frontier
Apr 9
BDL9:21 pmHartford Bradley Intl
11h 30m
1 stop
STL7:51 amLambert-St Louis
Apr 13
STL8:41 amLambert-St Louis
11h 27m
1 stop
BDL9:08 pmHartford Bradley Intl
$235

momondo Fare Finder

 
Customize your flight search to find flights from Hartford to St. Louis that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated March 27, 2026.
Use the filters below to find and compare flights from Hartford to St. Louis that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

HartfordSt. Louis

BDL - STL

BDLSTL

Hartford Bradley Intl

Thu 4/9

9:21 pm-7:51 am

1 stop11h 30m

Lambert-St Louis

Wed 4/15

8:23 pm-2:49 pm

1 stop17h 26m

$211

HartfordSt. Louis

BDL - STL

BDLSTL

Hartford Bradley Intl

Fri 4/24

8:42 pm-11:19 pm

1 stop27h 37m

Lambert-St Louis

Fri 5/1

4:59 pm-4:57 pm

1 stop22h 58m

$216

HartfordSt. Louis

BDL - STL

BDLSTL

Hartford Bradley Intl

Thu 4/9

9:21 pm-7:51 am

1 stop11h 30m

Lambert-St Louis

Mon 4/13

8:41 am-9:08 pm

1 stop11h 27m

$235

HartfordSt. Louis

BDL - STL

BDLSTL

Hartford Bradley Intl

Mon 5/18

5:44 pm-12:21 am

1 stop7h 37m

Lambert-St Louis

Thu 5/21

4:19 pm-4:45 pm

1 stop23h 26m

$236

HartfordSt. Louis

BDL - STL

BDLSTL

Hartford Bradley Intl

Thu 4/9

2:55 pm-7:51 am

2 stops17h 56m

Lambert-St Louis

Wed 4/15

8:23 pm-2:49 pm

1 stop17h 26m

$241

HartfordSt. Louis

BDL - STL

BDLSTL

Hartford Bradley Intl

Sun 4/26

3:50 pm-6:50 am

1 stop16h 00m

Lambert-St Louis

Wed 4/29

8:23 pm-2:49 pm

1 stop17h 26m

$243

HartfordSt. Louis

BDL - STL

BDLSTL

Hartford Bradley Intl

Tue 4/7

6:29 pm-11:25 pm

1 stop29h 56m

Lambert-St Louis

Wed 4/15

8:23 pm-2:49 pm

1 stop17h 26m

$244

HartfordSt. Louis

BDL - STL

BDLSTL

Hartford Bradley Intl

Thu 4/9

9:21 pm-7:51 am

1 stop11h 30m

Lambert-St Louis

Mon 4/13

8:41 am-9:08 pm

1 stop11h 27m

$246

HartfordSt. Louis

BDL - STL

BDLSTL

Hartford Bradley Intl

Thu 4/30

3:50 pm-6:50 am

1 stop16h 00m

Lambert-St Louis

Sat 5/2

8:23 pm-2:13 pm

1 stop16h 50m

$250
Quickest round-trip

HartfordSt. Louis

BDL - STL

BDLSTL

Hartford Bradley Intl

Wed 5/20

7:19 pm-11:56 pm

1 stop5h 37m

Lambert-St Louis

Tue 5/26

6:12 pm-12:55 am

1 stop5h 43m

$263

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to St. Louis from

How to get the cheapest flight ticket from Hartford to St. Louis

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between Hartford and St. Louis?

What is the cheapest month to fly to St. Louis?

In general, August is the cheapest month to fly from Hartford to St. Louis. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $304. The month of September is another great option to travel to St. Louis, with average flight prices from Hartford averaging around $356.

How far in advance should I book a flight to St. Louis?

You are more likely to see cheaper flights to St. Louis from Hartford when booking weeks ahead of your departure date. In general, you can expect to find flights to St. Louis for around $391 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to St. Louis from Hartford for as low as $228 on momondo.

How have Hartford to St. Louis flight prices changed over time?

As of March 2026, prices for Hartford to St. Louis flights are approximately 56% more expensive when compared to flights at the same time last year.

When to book flights from Hartford to St. Louis

Are you open to changing your travel dates? Check out the ideal times to fly from Hartford to St. Louis according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Hartford to St. Louis (BDL to STL) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Hartford to St. Louis

Fastest flight time

5h 14m

Direct flights

None
The fastest flight from Hartford to St. Louis takes 5h 14m
There are no direct flights from Hartford to St. Louis. There are no popular flight routes from Hartford to St. Louis.
Search flight deals

  • How far is Hartford Bradley Intl to Lambert-St Louis by plane?

    Lambert-St Louis is 947.3 mi away from Hartford Bradley Intl. 5h 14m is a normal flight duration for this route.

  • When did momondo last update prices for flights from Hartford Bradley Intl Airport to Lambert-St Louis Airport?

    Prices for flights from Hartford Bradley Intl Airport to Lambert-St Louis Airport are updated daily.

  • How many operators does momondo search for flights from Hartford Bradley Intl Airport to Lambert-St Louis Airport?

  • How old do you have to be to fly from Hartford Bradley Intl Airport to Lambert-St Louis Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Hartford Bradley Intl Airport to Lambert-St Louis Airport.

  • What documentation or ID do you need to fly to Lambert-St Louis Airport?

    The necessary travel and health documents for your Lambert-St Louis Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from Hartford to St. Louis?

Best airlines flying from Hartford to St. Louis

Compare and see reviews for airlines that fly from Hartford to St. Louis with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $81Free CancellationRating
5.7
3,014 reviews
Search Frontier flights
DeltaPriceFrom $238Free CancellationRating
7.9
8,341 reviews
Search Delta flights
United AirlinesPriceFrom $242Free CancellationRating
7.4
9,491 reviews
Search United Airlines flights
American AirlinesPriceFrom $246Free CancellationRating
7.1
11,507 reviews
Search American Airlines flights
SouthwestPriceFrom $283Free CancellationRating
8.0
4,331 reviews
Search Southwest flights

Traveling to a place near St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
St. Charles
Chesterfield
Hermann
Fairview Heights
Florissant
Maryland Heights
O'Fallon
Collinsville
St. Peters
Wentzville
Alton
Fenton
Farmington
Clayton
Festus
Edwardsville
Eureka
Litchfield
Shrewsbury
Grafton

Why use momondo?

Why should I use momondo to find a flight deal from Hartford to St. Louis?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to St. Louis from Hartford.

Can I find flights from Hartford to St. Louis with flexible booking policies on momondo?

Yes. All flights to St. Louis from Hartford on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Hartford to St. Louis?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to St. Louis from Hartford.

I’m not ready to book a flight from Hartford to St. Louis right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Hartford to St. Louis flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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