Flights Hartford → Seattle
As of October 2026, economy flights from Hartford to Seattle have a typical range USD 360–1300, median USD 569. Full range across all 48 offers: USD 359–3918. We analyzed 48 offers from 5 airlines in a single price check.
Preview snapshot — prices change. Search for live results.
Data collected by LetsFG's multi-source price checks — every airline and the major booking sites checked for this route. How we collect data →
Best offers by airline: Hartford → Seattle
Based on 48 offers · October 2026. Prices and availability change — run a live search to confirm.
Bag & seat fees: Hartford → Seattle
Add-on pricing from the cheapest available offer per airline · October 2026 · USD
| Airline | Carry-on | Checked bag | Seat selection |
|---|---|---|---|
| United | Included | USD 35 | — |
| Southwest | — | Included | — |
| Delta | Included | USD 35 | — |
| American Airlines | Included | USD 35 | — |
| Alaska Airlines | — | USD 35 | — |
Fees are estimates from the prices we checked and may not reflect your specific itinerary, booking class, or payment method. Run a live search for exact pricing.
How much do flights from Hartford to Seattle cost?
Based on 48 offers · October 2026
Hartford to Seattle flights ranged from USD 359 to USD 3918 across 48 offers analyzed in October 2026. The chart below shows how prices distributed across all 48 offers.
These 48 offers (October 2026) span multiple departure dates and booking windows — your travel dates may fall anywhere in this distribution. Only a live search shows where your specific trip lands.
50% of offers priced between USD 432 and USD 946
What hidden fees do Hartford to Seattle flights charge?
Ancillary fees — bags, seat selection, and payment surcharges — can add 10–25% to the base fare on Hartford to Seattle routes. The breakdown below is based on 48 offers analyzed in October 2026.
| Carrier | Avg fee (USD) | % of base fare |
|---|---|---|
| UA | 35 | 4% |
| WN | 0 | 0% |
| DL | 26 | 2% |
| AA | 50 | 8% |
| AS | 45 | 9% |
American Airlines: base ~USD 519 + fees USD 50 = ~USD 569 total. Delta Air Lines: base ~USD 914 + fees USD 26 = ~USD 940 total.
American Airlines's USD 50 ancillary fees narrow the gap with Delta Air Lines's lower-fee model — the USD 395 base difference shrinks to USD 371 after fees. Always compare total cost, not just the advertised base fare.
Estimates based on median total minus average ancillary fee. Actual base fares vary by itinerary.Fee levels vary significantly across carriers on this route — some carriers charge 50%+ above the base fare in ancillary fees.
Run your search to see itemized fees for your itineraryWhich airline is cheapest from Hartford to Seattle?
5 airlines flew Hartford to Seattle in this dataset. Knowing the airline isn't enough — the typical fare range below shows how far prices swing on each one. Median and range include all fees we recorded.
Even on the cheapest airline (Southwest Airlines), fares ranged USD 360–480 in this snapshot. Your exact price depends on your dates and how far ahead you book — run a live search to see your number →
| Airline | Offers | Typical range (USD) | Median (USD) | Fees (USD) |
|---|---|---|---|---|
 Southwest Airlines | 5 | 360–480 | 365 | 0 (0%) |
 Alaska Airlines | 5 | 469–500 | 469 | 45 (10%) |
 American Airlines | 14 | 432–861 | 569 | 50 (9%) |
 United Airlines | 10 | 359–1674 | 663 | 35 (5%) |
 Delta Air Lines | 14 | 576–2720 | 940 | 26 (3%) |
Where do the best Hartford → Seattle prices come from?
We checked direct airlines, travel agencies, and meta-search for this route. On this route the lowest median came from meta-search sources, but the cheapest channel shifts by route and date — which is exactly why a live search across all of them wins.
We compare every airline and the major booking sites but never disclose which — that's our edge. Prices are the ones we observed and aren't official data from any platform. Run a live search and we bring you the cheapest, wherever it is.
Key facts: Hartford to Seattle flights
- Full-service carriers on Hartford–Seattle cost 1.8x more than budget airlines (USD 660 vs USD 365 median; overall median USD 569).
- AA charges 2.0x more in ancillary fees than DL — USD 50 vs USD 26 avg per booking.
- The same route priced USD 3259 apart depending on where it was booked — the lowest median was USD 365. We search every airline and the major booking sites at once so you always see that lowest price.
Frequently asked questions
- How much does a flight from Hartford to Seattle cost?
- Based on 48 offers analyzed, Hartford to Seattle flights range from USD 359 to USD 3918, with a median price of USD 569. Search for your specific dates →
- What hidden fees should I expect on Hartford to Seattle flights?
- On average, ancillary fees (bags, seat selection) add USD 34 to the base fare on Hartford to Seattle flights. See itemized fees for your itinerary →
- Which airline is cheapest on Hartford to Seattle including all fees?
- Southwest Airlines has the lowest median fare on Hartford to Seattle at USD 365 (median across 5 offers in our snapshot). Check which airline wins on your dates →
- Which booking site has the cheapest Hartford–Seattle flights?
- It depends on your dates — no single site is always cheapest. We search every airline and the major booking sites at once (travel agencies and meta-search included) and surface whichever is lowest; the best median in this snapshot was USD 365. Run a live search and we'll find the cheapest for you →
- Why do prices vary so much on Hartford to Seattle routes?
- Hartford to Seattle has 5 airlines competing, creating a price range from USD 359 to USD 3918 across 48 offers. Prices on this route change with booking timing, advance purchase, and ancillary add-ons. Find where your trip lands in the distribution →
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