$163 Cheap Delta flights Seattle (SEA) to Hartford (BDL)

You’ll find affordable round-trip Delta Air Lines flights from $325 from SEA to BDL by filtering your results from “Price (lowest to highest)” on Expedia. Or look for options from $163 for a one-way journey.**These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.

Browse for one-way or return flights to Hartford in December or November. You could find lower fares with Delta Air Lines during these quieter months.

Start searching one to three months ahead of your departure date to find cheap fares on Delta Air Lines flights from Seattle - Tacoma Intl. Airport (SEA) to Bradley Intl. Airport (BDL). You can save 25% by booking your domestic flight 34 to 86 days in advance compared to last-minute reservations made 6 to 12 days out. You could also reduce costs by buying your fare on a Sunday, as it’s 6% cheaper on average than a Monday, the most expensive day to book.* Get the timing right, and you can enjoy significant savings on domestic flights.*Ideal booking window recommendation is based on average round-trip ticket prices for January through November for 2024. Best day of the week to book recommendation is based on average round-trip ticket prices for January through October 2024. All data sourced from ARC’s global airline sales database.

Use the “Nonstop” filter when browsing for direct Delta Air Lines flights from SEA to BDL. It’s also a great way to compare other airlines offering the same direct route.

To find the earliest departure from SEA to BDL with Delta Air Lines, filter your results by “Morning” and “Early Morning.” Choosing an early flight usually means you’re less likely to experience cancellations.**Most reliable time of the day recommendation is based on January through August 2024 flight status data sourced from OAG’s global flight data platform.

Bradley Intl. Airport (BDL) is the primary Hartford gateway for Delta Air Lines flights from Seattle - Tacoma Intl. Airport (SEA).

Offering a rewarding loyalty program and an excellent in-flight experience, Delta Air Lines is a popular option for many travelers flying from SEA to BDL. Plus, if you’re a Delta SkyMiles and One Key™ member booking with Expedia, you could earn OneKeyCash™* on eligible flights on top of your airline miles, which can go toward future getaways.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.

It’s generally possible to reschedule or cancel your flight, although there may be a charge if you booked over 24 hours ago. Need flexible options? Apply the “No cancel fee” or “Changes included” filter to find flights that won’t penalize you if you need to adjust your plans. To modify your itinerary, head to “Trips,” select your flight and click on “Manage Booking” for further information.