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Cheap flights from Hartford to St. Louis from $121

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 7/29. 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

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Hartford to St. Louis

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
7:32 pm - 5:22 pm
BDL
-
STL
22h 50m
2 stops
Multiple Airlines Logo
6:45 pm - 6:20 am
STL
-
BDL
10h 35m
1 stop
$316Multiple Airlines
Wed, Aug 19 - Tue, Aug 25
Delta Logo
6:00 am - 9:54 am
BDL
-
STL
4h 54m
1 stop
Delta Logo
6:25 pm - 11:51 pm
STL
-
BDL
4h 26m
1 stop
$317Delta
Tue, Aug 18 - Tue, Aug 25
Multiple Airlines Logo
8:10 am - 5:22 pm
BDL
-
STL
34h 12m
2 stops
Multiple Airlines Logo
6:45 pm - 6:20 am
STL
-
BDL
10h 35m
1 stop
$321Multiple Airlines
Thu, Aug 20 - Tue, Aug 25
Delta Logo
1:09 pm - 5:14 pm
BDL
-
STL
5h 05m
1 stop
Delta Logo
6:25 pm - 11:51 pm
STL
-
BDL
4h 26m
1 stop
$322Delta
Sat, Aug 15 - Mon, Aug 17
Southwest Logo
5:55 am - 11:35 am
BDL
-
STL
6h 40m
1 stop
Southwest Logo
6:30 am - 2:50 pm
STL
-
BDL
7h 20m
2 stops
$328Southwest
Mon, Sep 14 - Wed, Sep 16
Multiple Airlines Logo
5:40 pm - 5:50 pm
BDL
-
STL
25h 10m
1 stop
Multiple Airlines Logo
6:17 pm - 5:10 pm
STL
-
BDL
21h 53m
2 stops
$336Multiple Airlines
Thu, Aug 20 - Mon, Aug 24
American Airlines Logo
10:48 am - 5:01 pm
BDL
-
STL
7h 13m
1 stop
American Airlines Logo
4:54 pm - 10:54 pm
STL
-
BDL
5h 00m
1 stop
$338American Airlines
Sat, Aug 15 - Mon, Aug 17
Southwest Logo
7:10 am - 1:50 pm
BDL
-
STL
7h 40m
2 stops
Southwest Logo
6:00 am - 2:55 pm
STL
-
BDL
7h 55m
2 stops
$339Southwest
Wed, Oct 28 - Sat, Oct 31
United Airlines Logo
6:10 am - 11:57 am
BDL
-
STL
6h 47m
2 stops
United Airlines Logo
10:27 am - 5:53 pm
STL
-
BDL
6h 26m
1 stop
$340United Airlines
Wed, Sep 23 - Sat, Sep 26
Southwest Logo
6:50 am - 3:10 pm
BDL
-
STL
9h 20m
2 stops
Southwest Logo
4:15 pm - 10:10 pm
STL
-
BDL
4h 55m
1 stop
$343Southwest
Wed, Aug 19 - Mon, Aug 24

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Frontier flights from Hartford to St. Louis

Our best Frontier deals on Hartford to St. Louis flight tickets
Frontier
Jul 17
BDL12:27 pmHartford Bradley Intl
21h 30m
2 stops
STL8:57 amLambert-St Louis
Jul 19
STL4:09 pmLambert-St Louis
18h 23m
1 stop
BDL11:32 amHartford Bradley Intl
$400
Frontier
Jul 17
BDL12:27 pmHartford Bradley Intl
21h 30m
2 stops
STL8:57 amLambert-St Louis
Jul 19
STL4:09 pmLambert-St Louis
18h 23m
1 stop
BDL11:32 amHartford Bradley Intl
$417
Frontier
Jul 10
BDL12:27 pmHartford Bradley Intl
12h 32m
1 stop
STL11:59 pmLambert-St Louis
Jul 12
STL4:09 pmLambert-St Louis
18h 23m
1 stop
BDL11:32 amHartford Bradley Intl
$539

Southwest flights from Hartford to St. Louis

Our best Southwest deals on Hartford to St. Louis flight tickets
Southwest
Sep 14
BDL5:55 amHartford Bradley Intl
6h 40m
1 stop
STL11:35 amLambert-St Louis
Sep 16
STL6:30 amLambert-St Louis
7h 20m
2 stops
BDL2:50 pmHartford Bradley Intl
$328
Southwest
Oct 28
BDL7:10 amHartford Bradley Intl
7h 40m
2 stops
STL1:50 pmLambert-St Louis
Oct 31
STL6:00 amLambert-St Louis
7h 55m
2 stops
BDL2:55 pmHartford Bradley Intl
$339
Southwest
Aug 19
BDL6:50 amHartford Bradley Intl
9h 20m
2 stops
STL3:10 pmLambert-St Louis
Aug 24
STL4:15 pmLambert-St Louis
4h 55m
1 stop
BDL10:10 pmHartford Bradley Intl
$343

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 June 30, 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

Wed 8/19

7:32 pm-5:22 pm

2 stops22h 50m

Lambert-St Louis

Tue 8/25

6:45 pm-6:20 am

1 stop10h 35m

$316
Quickest round-trip

HartfordSt. Louis

BDL - STL

BDLSTL

Hartford Bradley Intl

Tue 8/18

6:00 am-9:54 am

1 stop4h 54m

Lambert-St Louis

Tue 8/25

6:25 pm-11:51 pm

1 stop4h 26m

$317

HartfordSt. Louis

BDL - STL

BDLSTL

Hartford Bradley Intl

Thu 8/20

8:10 am-5:22 pm

2 stops34h 12m

Lambert-St Louis

Tue 8/25

6:45 pm-6:20 am

1 stop10h 35m

$321

HartfordSt. Louis

BDL - STL

BDLSTL

Hartford Bradley Intl

Sat 8/15

1:09 pm-5:14 pm

1 stop5h 05m

Lambert-St Louis

Mon 8/17

6:25 pm-11:51 pm

1 stop4h 26m

$322

HartfordSt. Louis

BDL - STL

BDLSTL

Hartford Bradley Intl

Mon 9/14

5:55 am-11:35 am

1 stop6h 40m

Lambert-St Louis

Wed 9/16

6:30 am-2:50 pm

2 stops7h 20m

$328

HartfordSt. Louis

BDL - STL

BDLSTL

Hartford Bradley Intl

Thu 8/20

5:40 pm-5:50 pm

1 stop25h 10m

Lambert-St Louis

Mon 8/24

6:17 pm-5:10 pm

2 stops21h 53m

$336

HartfordSt. Louis

BDL - STL

BDLSTL

Hartford Bradley Intl

Sat 8/15

10:48 am-5:01 pm

1 stop7h 13m

Lambert-St Louis

Mon 8/17

4:54 pm-10:54 pm

1 stop5h 00m

$338

HartfordSt. Louis

BDL - STL

BDLSTL

Hartford Bradley Intl

Wed 10/28

7:10 am-1:50 pm

2 stops7h 40m

Lambert-St Louis

Sat 10/31

6:00 am-2:55 pm

2 stops7h 55m

$339

HartfordSt. Louis

BDL - STL

BDLSTL

Hartford Bradley Intl

Wed 9/23

6:10 am-11:57 am

2 stops6h 47m

Lambert-St Louis

Sat 9/26

10:27 am-5:53 pm

1 stop6h 26m

$340

HartfordSt. Louis

BDL - STL

BDLSTL

Hartford Bradley Intl

Wed 8/19

6:50 am-3:10 pm

2 stops9h 20m

Lambert-St Louis

Mon 8/24

4:15 pm-10:10 pm

1 stop4h 55m

$343

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 November is another great option to travel to St. Louis, with average flight prices from Hartford averaging around $371.

How far in advance should I book a flight from Hartford 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 $417 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 June 2026, prices for Hartford to St. Louis flights are approximately 36% 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

4h 42m

Direct flights

None
The fastest flight from Hartford to St. Louis takes 4h 42m
There are no direct flights from Hartford to St. Louis. There are no popular flight routes from Hartford to St. Louis.
Search flight deals

Frequently asked questions about flying from Hartford to St. Louis

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

    Lambert-St Louis is 947.3 mi away from Hartford Bradley Intl. 4h 42m 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
United AirlinesPriceFrom $242Free CancellationRating
7.4
9,901 reviews
Search United Airlines flights
American AirlinesPriceFrom $246Free CancellationRating
7.1
11,762 reviews
Search American Airlines flights
DeltaPriceFrom $246Free CancellationRating
7.8
8,451 reviews
Search Delta flights
SouthwestPriceFrom $274Free CancellationRating
7.9
4,247 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
Fairview Heights
Hermann
Maryland Heights
Florissant
O'Fallon
St. Peters
Collinsville
Alton
Fenton
Farmington
Wentzville
Clayton
Festus
Eureka
Litchfield
Edwardsville
Grafton
Shrewsbury

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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