Compare 6 loyalty programs for Seattle to Boston award flights, with economy seats from 12,400 points.
Seattle to Boston is a transcontinental domestic route with nonstop award seats on Delta and Alaska Airlines. It's priced by six programs, and the cheapest economy award is 12,400 points through Delta SkyMiles, on a nonstop. Domestic cash fares can rival awards, so check the cash price first and redeem when the award price is low. The tables below compare SEA–BOS pricing across all six programs.
Best one-way award prices per airline over the next 12 months.
| Airline | Economy | Premium economy | Business | First |
|---|---|---|---|---|
 DeltaDL | 12,400Lowest | Not available | 51,000Lowest | 66,800pts |
 American AirlinesAA | 12,500pts | Not available | Not available | Not available |
 Alaska AirlinesAS | 12,500pts | Not available | Not available | 47,500Lowest |
 United AirlinesUA | 15,000pts | 100,000Lowest | 100,000pts | 54,600pts |
 JetBlueB6 | 35,000pts | Not available | Not available | Not available |
 Qatar AirwaysQR | 60,000pts | Not available | 240,000pts | Not available |
When award seats between Seattle and Boston price cheapest over the next year.
| Month | Cheapest award (points) |
|---|---|
| Nov 2026 | 12,400 |
| Dec 2026 | 12,500 |
| Jan 2027 | 12,500 |
| Feb 2027 | No award data |
| Mar 2027 | No award data |
| Apr 2027 | No award data |
| May 2027 | No award data |
| Jun 2027 | No award data |
| Jul 2027 | No award data |
| Aug 2027 | No award data |
| Sep 2027 | No award data |
| Oct 2027 | No award data |
6 airlines with award seats between Seattle and Boston, nonstop or connecting.
American AirlinesAAAlaska AirlinesASJetBlueB6DeltaDLQatar AirwaysQRUnited AirlinesUAWhat to know before booking Seattle to Boston with points.
~2,490 miles; ~5h30 nonstop (approximate). Local time in Boston is 3 hours ahead of Seattle. Data covers November 2026–October 2027, with calendar prices for three months. Counting well-covered months only, December 2026 and January 2027 are among the cheapest, at 12,500 points.
Seattle to Boston is served by American Airlines, Alaska Airlines, JetBlue and 3 more, offering multiple options for award travelers. Compare 6 loyalty programs to find the best value for your points. Award prices start from 12,400 points in economy. Use our search tool to check real-time award availability on this route.
Flying Seattle to Boston covers about 2,490 miles, linking Seattle-Tacoma International Airport (SEA) with Boston Logan International Airport (BOS); a nonstop takes roughly 5h30, with winds moving it either way. Delta and Alaska Airlines both carry nonstop award space in the data. Aircraft logged on those nonstops include the Airbus A321, Boeing 737-900, and Airbus A321neo. Nonstops make up only about 6% of the award options in the data; the rest connect.
Seattle–Boston is domestic, so price it in cash before you price it in points. The cheapest economy seat is a Delta nonstop booked through the airline's own program, so saving points costs no extra time. Taxes and fees on that seat run about $6, in line with the route's typical economy taxes. Run the miles-or-cash math each time: a cheap fare usually beats spending points. Bank points transfer to Delta SkyMiles; check for a transfer bonus, then confirm the seat before moving them.
Delta SkyMiles is cheapest in economy at 12,400 points on a Delta nonstop. Air France-KLM Flying Blue wins business class at 51,000 points on a Delta nonstop. Alaska Atmos Rewards takes first class at 47,500 points on an Alaska Airlines nonstop. For a cross-check, United MileagePlus, American AAdvantage, and Qatar Airways Privilege Club price the route too. No program wins more than one cabin here, so pick the seat first, then the currency.
Nonstop award space on Seattle–Boston spans two alliances: Delta (SkyTeam) and Alaska Airlines (oneworld). That means partner programs in both alliances have a way onto a nonstop. For connecting options, the better-priced awards in the data connect in Los Angeles, Chicago, and San Francisco. The business-class floor is a SkyTeam partner award: Air France-KLM Flying Blue prices the Delta nonstop. With just six airlines holding award seats here, a route alert catches new space faster than rechecking each carrier.
The data shows no same-metro alternate airports on either end of Seattle–Boston, so the main airports are the ones to watch. Pricing the round trip? Boston to Seattle is tracked separately, and awards can price differently each way. For another option from Seattle, Anchorage prices from 12,500 points at last check.
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Common questions travelers ask about the Seattle to Boston route.
