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Flights from Hartford to St. Louis

Search cheap flights from Hartford to St. Louis in the next 3 months. Based on Trip.com's latest 7-day data, one-way fares start at US$140, and round-trip tickets start at US$281.

      • BDL 06:00
        4h 54m
        1 stop
        STL 09:54
        Hartford - St. Louis | Wed, Aug 12 | Delta Air Lines
        STL 15:39
        5h 50m
        1 stop
        BDL 22:29
        St. Louis - Hartford | Fri, Aug 14 | Delta Air Lines
        US$281 US$406
        31% off
        31% off
        US$406 US$281
      • BDL 12:27
        12h 32m
        1 stop
        STL 23:59
        Hartford - St. Louis | Mon, Jul 20 | Frontier Airlines
        STL 16:09
        18h 23m
        1 stop
        BDL 11:32
        St. Louis - Hartford | Thu, Jul 23 | Frontier Airlines
        US$287 US$406
        28% off
        28% off
        US$406 US$287
      • BDL 06:00
        7h 17m
        1 stop
        STL 12:17
        Hartford - St. Louis | Wed, Jul 29 | Delta Air Lines
        STL 17:42
        5h 12m
        1 stop
        BDL 23:54
        St. Louis - Hartford | Sat, Aug 1 | Delta Air Lines
        US$304 US$406
        25% off
        25% off
        US$406 US$304
      • BDL 05:30
        5h 7m
        1 stop
        STL 09:37
        Hartford - St. Louis | Sat, Aug 8 | Delta Air Lines
        STL 09:15
        7h 50m
        1 stop
        BDL 18:05
        St. Louis - Hartford | Fri, Aug 14 | Delta Air Lines
        US$314
        23% off
        US$406 US$314
      • BDL 05:30
        5h 7m
        1 stop
        STL 09:37
        Hartford - St. Louis | Tue, Aug 4 | Delta Air Lines
        STL 17:23
        5h 35m
        1 stop
        BDL 23:58
        St. Louis - Hartford | Wed, Aug 12 | Delta Air Lines
        US$317
        22% off
        US$406 US$317
      • BDL 05:30
        5h 1m
        1 stop
        STL 09:31
        Hartford - St. Louis | Wed, Jul 22 | Delta Air Lines
        STL 18:04
        4h 10m
        1 stop
        BDL 23:14
        St. Louis - Hartford | Wed, Jul 22 | Delta Air Lines
        US$349
        14% off
        US$406 US$349
      • BDL 05:30
        5h 1m
        1 stop
        STL 09:31
        Hartford - St. Louis | Tue, Jul 21 | Delta Air Lines
        STL 06:30
        4h 43m
        1 stop
        BDL 12:13
        St. Louis - Hartford | Wed, Jul 22 | Delta Air Lines
        US$349
        14% off
        US$406 US$349
      • BDL 06:00
        4h 54m
        1 stop
        STL 09:54
        Hartford - St. Louis | Fri, Aug 28 | Delta Air Lines
        STL 09:15
        7h 50m
        1 stop
        BDL 18:05
        St. Louis - Hartford | Sun, Aug 30 | Delta Air Lines
        US$351
        14% off
        US$406 US$351
      • BDL 11:44
        4h 54m
        1 stop
        STL 15:38
        Hartford - St. Louis | Wed, Aug 12 | United Airlines
        STL 08:00
        5h 29m
        1 stop
        BDL 14:29
        St. Louis - Hartford | Fri, Aug 14 | United Airlines
        US$355
        13% off
        US$406 US$355
      • BDL 16:30
        7h 50m
        1 stop
        STL 23:20
        Hartford - St. Louis | Sat, Jul 25 | Delta Air Lines
        STL 18:04
        4h 10m
        1 stop
        BDL 23:14
        St. Louis - Hartford | Fri, Jul 31 | Delta Air Lines
        US$361
        11% off
        US$406 US$361
      • HFD 13:00
        17h 25m
        1 stop
        STL 14:00
        Hartford - St. Louis | Sun, Jul 19 | Normal Airline
        STL 15:00
        6h
        Nonstop
        HFD 16:00
        St. Louis - Hartford | Tue, Jul 21 | Normal Airline
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      • BDL 12:27
        12h 32m
        1 stop
        STL 23:59
        Hartford - St. Louis | Wed, Jul 29 | Frontier Airlines
        US$140 US$181
        23% off
        23% off
        US$181 US$140
      • BDL 12:27
        12h 32m
        1 stop
        STL 23:59
        Hartford - St. Louis | Wed, Jul 22 | Frontier Airlines
        US$144 US$181
        20% off
        20% off
        US$181 US$144
      • BDL 05:30
        5h 1m
        1 stop
        STL 09:31
        Hartford - St. Louis | Tue, Jul 28 | Delta Air Lines
        US$154 US$181
        15% off
        15% off
        US$181 US$154
      • BDL 05:30
        5h 1m
        1 stop
        STL 09:31
        Hartford - St. Louis | Wed, Jul 29 | Delta Air Lines
        US$154
        15% off
        US$181 US$154
      • BDL 05:30
        5h 7m
        1 stop
        STL 09:37
        Hartford - St. Louis | Tue, Aug 4 | Delta Air Lines
        US$154
        15% off
        US$181 US$154
      • BDL 05:30
        5h 1m
        1 stop
        STL 09:31
        Hartford - St. Louis | Tue, Jul 21 | Delta Air Lines
        US$158
        13% off
        US$181 US$158
      • BDL 05:30
        5h 1m
        1 stop
        STL 09:31
        Hartford - St. Louis | Sat, Jul 25 | Delta Air Lines
        US$159
        12% off
        US$181 US$159
      • BDL 17:05
        4h 37m
        1 stop
        STL 20:42
        Hartford - St. Louis | Mon, Aug 17 | Delta Air Lines
        US$161
        11% off
        US$181 US$161
      • BDL 05:30
        5h 7m
        1 stop
        STL 09:37
        Hartford - St. Louis | Tue, Aug 18 | Delta Air Lines
        US$161
        11% off
        US$181 US$161
      • BDL 05:30
        5h 7m
        1 stop
        STL 09:37
        Hartford - St. Louis | Wed, Aug 12 | Delta Air Lines
        US$161
        11% off
        US$181 US$161
      • HFD 13:00
        17h 25m
        1 stop
        STL 14:00
        Hartford - St. Louis | Sun, Jul 19 | Normal Airline
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        Find more flights

Hartford to St. Louis Flight Details

The distance between Hartford and St. Louis is about 1,524.24 km. Based on Trip.com's latest data, travel demand is highest in July. The off-season for travel is September.

Cheapest one-way flight priceUS$140
Cheapest return ticket priceUS$281
Cheapest monthSeptember
Peak season for travelJuly
Flight distance1,524.24 km
Flight statistics for the Hartford–St. Louis route are based on aggregated booking data from Trip.com over the past 12 months.

Frequently Asked Questions

  • What are the cheapest flights from Hartford to St. Louis (HFD-STL)?

    Based on Trip.com data, Frontier Airlines offers one-way fares as low as US$140 on Cheapest nonstop routes (e.g. BDL to STL on Wed, Jul 29), while Delta Air Lines offers Cheapest nonstop round-trips from US$281 departing on Wed, Aug 12 and returning on Fri, Aug 14.
  • By analyzing data from all airlines on the Trip.com flight calendar, it looks like the best time to book a flight from Hartford to St. Louis is around 40 days (6 weeks) in advance, and the best time to fly is usually on Tuesday, Wednesday, and Saturday. Tuesday typically offers the cheapest flights for departure, while Saturday offers the best return deals.
  • To find best deals on flights from Hartford to St. Louis, you can use various tools on Trip.com:
    · Be flexible with your travel dates to get the cheapest flight deal. Now the cheapest flight deal is on Wed, Jul 29, with one-way flights priced at just US$140.
    · Compare airlines strategically. Budget carriers often provide the lowest base fares, while we found the most affordable airline currently operating on this route is Frontier Airlines.
    · Set up price alerts to easily monitor ticket prices without having to check every day.
    · Check Trip.com flight deals and promo codes frequently.
    · Avoid peak season unless you book very early. It seems the peak season for St. Louis travel is around July.
    · Get exclusive promo codes for Trip.com app users.
  • The cheapest months to fly from Hartford to St. Louis is September, when demand for travel is lower.
  • After crunching the numbers on our July flight calendar, it's currently cheapest to fly from Hartford to St. Louis on July 29, 2026 with Frontier Airlines, with prices starting at US$140.
  • You can land at any one of the following hubs in St. Louis, with Bradley International Airport to St. Louis Lambert International Airport (BDL-STL) is by far the most common option on this route: St. Louis Downtown Airport (CPS) St. Louis Lambert International Airport (STL).
  • The time difference between St. Louis and Hartford is 1h.
  • Tickets can only be changed or canceled if permitted by airline policy. To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy. However, if the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.

Trip.com Airline Insights on Flights from Hartford to St. Louis

Which airline offers the cheapest direct flights from Hartford to St. Louis?

Data is based on the average price of all nonstop flights from Hartford to St. Louis on Trip.com over the past 12 months.

Based on Trip.com’s data from the past 12 months, United Airlines provides the lowest-priced direct flights from Hartford to St. Louis, with fares starting at US$241.

US$193
US$241
US$289
US$337
US$385
United Airlines
US$241
United Airlines
Delta Air Lines
US$347
Delta Air Lines
American Airlines
US$385
American Airlines

Explore More Popular Flights

Note: Prices shown on this page are the estimated lowest prices found in the last 24 hours and include all taxes and fees.

Book with no extra fees

Prices displayed on this page are all-inclusive (incl. taxes, fuel surcharges, Civil Aviation Development Fund, etc.), and all fees are clearly shown before you pay. Charges for checked baggage, onboard meals, Wi‑Fi, and other optional services are also included where applicable in the flight cards.

Real-time pricing updates

Prices, availability, and travel details on this page have been updated within the last 24 hours, and for many routes are refreshed in real time. The more popular the route, the more accurate and up-to-date the data.

Change & Cancellation Policy

Trip.com shows the change and cancellation rules for each ticket during the booking process, including all related fees and conditions. Please refer to the following scenarios:
Voluntary cancellation/change:
To request a change or cancellation, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and flight segment, and submit your request. Please note that additional charges may apply based on the airline’s fare rules.
Cancellation/change due to a flight schedule change:
If your flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For full details of change and cancellation policies, please refer to the customer support pages.