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Flights from Seattle to Hartford

Search cheap flights from Seattle to Hartford in the next 3 months. Based on Trip.com's latest 7-day data, one-way fares start at US$176, and round-trip tickets start at US$237.

      • SEA 23:05
        9h 35m
        1 stop
        BDL 11:40
        Seattle - Hartford | Fri, Sep 11 | Delta Air Lines
        BDL 17:18
        9h 41m
        1 stop
        SEA 23:59
        Hartford - Seattle | Tue, Sep 15 | Delta Air Lines
        US$237 US$626
        62% off
        62% off
        US$626 US$237
      • SEA 23:59
        7h 55m
        1 stop
        BDL 10:54
        Seattle - Hartford | Thu, Aug 6 | Delta Air Lines
        BDL 17:05
        8h
        1 stop
        SEA 22:05
        Hartford - Seattle | Tue, Aug 11 | Delta Air Lines
        US$269 US$626
        56% off
        56% off
        US$626 US$269
      • SEA 07:16
        10h 37m
        1 stop
        BDL 20:53
        Seattle - Hartford | Thu, Aug 27 | Delta Air Lines
        BDL 08:00
        9h 45m
        1 stop
        SEA 14:45
        Hartford - Seattle | Wed, Sep 2 | Delta Air Lines
        US$357 US$626
        43% off
        43% off
        US$626 US$357
      • SEA 05:30
        7h 50m
        1 stop
        BDL 16:20
        Seattle - Hartford | Fri, Aug 28 | Delta Air Lines
        BDL 05:50
        7h 41m
        1 stop
        SEA 10:31
        Hartford - Seattle | Tue, Sep 1 | Delta Air Lines
        US$376
        40% off
        US$626 US$376
      • SEA 23:59
        7h 55m
        1 stop
        BDL 10:54
        Seattle - Hartford | Fri, Aug 7 | Delta Air Lines
        BDL 17:05
        8h
        1 stop
        SEA 22:05
        Hartford - Seattle | Tue, Aug 11 | Delta Air Lines
        US$390
        38% off
        US$626 US$390
      • SEA 23:59
        9h 3m
        1 stop
        BDL 12:02
        Seattle - Hartford | Fri, Sep 11 | American Airlines
        BDL 18:24
        8h 47m
        1 stop
        SEA 00:11
        Hartford - Seattle | Tue, Sep 15 | American Airlines
        US$405
        35% off
        US$626 US$405
      • SEA 23:00
        8h 38m
        1 stop
        BDL 10:38
        Seattle - Hartford | Fri, Sep 11 | United Airlines
        BDL 16:50
        8h 55m
        1 stop
        SEA 22:45
        Hartford - Seattle | Tue, Sep 15 | United Airlines
        US$406
        35% off
        US$626 US$406
      • SEA 06:00
        9h 50m
        1 stop
        BDL 18:50
        Seattle - Hartford | Sun, Sep 6 | Delta Air Lines
        BDL 17:13
        7h 57m
        1 stop
        SEA 22:10
        Hartford - Seattle | Sun, Sep 13 | Delta Air Lines
        US$418
        33% off
        US$626 US$418
      • SEA 08:35
        10h 19m
        1 stop
        BDL 21:54
        Seattle - Hartford | Sun, Aug 2 | Delta Air Lines
        BDL 17:24
        9h 33m
        1 stop
        SEA 23:57
        Hartford - Seattle | Wed, Aug 5 | Delta Air Lines
        US$432
        31% off
        US$626 US$432
      • SEA 23:00
        8h 33m
        1 stop
        BDL 10:33
        Seattle - Hartford | Thu, Aug 13 | United Airlines
        BDL 10:33
        8h 33m
        1 stop
        SEA 16:06
        Hartford - Seattle | Thu, Aug 20 | United Airlines
        US$438
        30% off
        US$626 US$438
      • SEA 13:00
        17h 25m
        1 stop
        HFD 14:00
        Seattle - Hartford | Tue, Jul 21 | Normal Airline
        HFD 15:00
        6h
        Nonstop
        SEA 16:00
        Hartford - Seattle | Thu, Jul 23 | Normal Airline
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      • SEA 05:10
        8h 10m
        1 stop
        BDL 16:20
        Seattle - Hartford | Wed, Aug 5 | Delta Air Lines
        US$176 US$359
        51% off
        51% off
        US$359 US$176
      • SEA 23:59
        7h 55m
        1 stop
        BDL 10:54
        Seattle - Hartford | Tue, Aug 4 | Delta Air Lines
        US$176 US$359
        51% off
        51% off
        US$359 US$176
      • SEA 23:10
        9h 50m
        1 stop
        BDL 12:00
        Seattle - Hartford | Tue, Aug 11 | Delta Air Lines
        US$176 US$359
        51% off
        51% off
        US$359 US$176
      • SEA 23:59
        7h 55m
        1 stop
        BDL 10:54
        Seattle - Hartford | Tue, Aug 18 | Delta Air Lines
        US$181
        50% off
        US$359 US$181
      • SEA 23:00
        12h 20m
        1 stop
        BDL 14:20
        Seattle - Hartford | Tue, Aug 18 | Hahn Air
        US$200
        44% off
        US$359 US$200
      • SEA 05:10
        8h 22m
        1 stop
        BDL 16:32
        Seattle - Hartford | Tue, Aug 4 | American Airlines
        US$220
        39% off
        US$359 US$220
      • SEA 23:11
        8h 10m
        1 stop
        BDL 10:21
        Seattle - Hartford | Wed, Aug 5 | United Airlines
        US$221
        38% off
        US$359 US$221
      • SEA 23:11
        8h 10m
        1 stop
        BDL 10:21
        Seattle - Hartford | Tue, Aug 4 | United Airlines
        US$221
        38% off
        US$359 US$221
      • SEA 06:25
        10h 27m
        1 stop
        BDL 19:52
        Seattle - Hartford | Tue, Aug 18 | American Airlines
        US$231
        36% off
        US$359 US$231
      • SEA 18:40
        13h 7m
        1 stop
        BDL 10:47
        Seattle - Hartford | Wed, Aug 5 | Sun Country Airlines
        US$251
        30% off
        US$359 US$251
      • SEA 13:00
        17h 25m
        1 stop
        HFD 14:00
        Seattle - Hartford | Tue, Jul 21 | Normal Airline
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Cheapest airlines flights from Seattle to Hartford

You can choose from 1 airlines that fly from Seattle to Hartford, including American Airlines, Delta Air Lines has lowest fares on this route.
American Airlines logo American Airlines
Airlines are determined based on actual purchased flight tickets from Seattle to Hartford according to previous 12 months data from Trip.com.

Seattle to Hartford Flight Details

The distance between Seattle and Hartford is about 3,910.22 km. Based on Trip.com's latest data, travel demand is highest in July. The off-season for travel is October.

Cheapest one-way flight priceUS$176
Cheapest return ticket priceUS$237
Cheapest monthOctober
Peak season for travelJuly
Flight distance3,910.22 km
Popular airlineAmerican Airlines
Flight statistics for the Seattle–Hartford route are based on aggregated booking data from Trip.com over the past 12 months.

Frequently Asked Questions

  • What are the cheapest flights from Seattle to Hartford (SEA-HFD)?

    Based on Trip.com data, Delta Air Lines offers one-way fares as low as US$176 on Cheapest nonstop routes (e.g. SEA to BDL on Wed, Aug 5), while Delta Air Lines offers Cheapest nonstop round-trips from US$237 departing on Fri, Sep 11 and returning on Tue, Sep 15.
  • By analyzing data from all airlines on the Trip.com flight calendar, it looks like the best time to book a flight from Seattle to Hartford 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 Seattle to Hartford, 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, Aug 5, with one-way flights priced at just US$176.
    · Compare airlines strategically. Budget carriers often provide the lowest base fares, while we found the most affordable airline currently operating on this route is Delta Air Lines.
    · 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 Hartford travel is around July.
    · Get exclusive promo codes for Trip.com app users.
  • The cheapest months to fly from Seattle to Hartford is October, when demand for travel is lower.
  • After crunching the numbers on our July flight calendar, it's currently cheapest to fly from Seattle to Hartford on July 23, 2026 with Sun Country Airlines, with prices starting at US$249.
  • The time difference between Hartford and Seattle is 3h.
  • 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 Seattle to Hartford

Which airline offers the cheapest direct flights from Seattle to Hartford?

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

Based on Trip.com’s data from the past 12 months, American Airlines provides the lowest-priced direct flights from Seattle to Hartford, with fares starting at US$202.

US$33
US$202
US$372
US$541
US$710
American Airlines
US$202
American Airlines
United Airlines
US$466
United Airlines
Delta Air Lines
US$710
Delta Air Lines

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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.