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Route overview: Boise to Seattle (SEA) flight deals

Boise (BOI) to Seattle (SEA), Jan 16–17, 2027: from $209 round trip

Boise (BOI) to Seattle (SEA), Jan 16–17, 2027: from $209 round trip on Axel, checked Oct 29, 2026. Lowest published fare: $209 round trip, Axel-exclusive, Alaska Airlines, nonstop, Jan 16–17, 2027, 1 adult, economy, checked Oct 29, 2026.

BOI → SEA1 adulteconomyRound trip

7 flight options · 3 airlines

Nonstop flights

Sat, Jan 16 – Sun, Jan 17

Alaska Airlines
8:46 pmBOI
1h 41m
Nonstop
9:27 pmSEA
Alaska Airlines
1:59 pmSEA
1h 21m
Nonstop
4:20 pmBOI

Round-trip total · 1 adult · Taxes included

Availability is checked when you select these flights.

Sat, Jan 16 – Sun, Jan 17

Delta Air Lines
6:15 amBOI
1h 59m
Nonstop
7:14 amSEA
Delta Air Lines
10:35 amSEA
1h 35m
Nonstop
1:10 pmBOI

Round-trip total · 1 adult · Taxes included

Availability is checked when you select these flights.

Sat, Jan 16 – Sun, Jan 17

Alaska Airlines
4:59 pmBOI
1h 43m
Nonstop
5:42 pmSEA
Alaska Airlines
1:59 pmSEA
1h 21m
Nonstop
4:20 pmBOI

Round-trip total · 1 adult · Taxes included

Availability is checked when you select these flights.

Sat, Jan 16 – Sun, Jan 17

Delta Air Lines
2:10 pmBOI
1h 50m
Nonstop
3:00 pmSEA
Delta Air Lines
10:35 amSEA
1h 35m
Nonstop
1:10 pmBOI

Round-trip total · 1 adult · Taxes included

Availability is checked when you select these flights.

One-stop flights

Sat, Jan 16 – Sun, Jan 17

Southwest Airlines
6:40 pmBOI
4h 40m
SMF · 1h 5m
10:20 pmSEA
Southwest Airlines
5:15 amSEA
6h 10m
SMF · 2h 55m
12:25 pmBOI

Round-trip total · 1 adult · Taxes included

Availability is checked when you select these flights.

Sat, Jan 16 – Sun, Jan 17

Alaska Airlines
1:00 pmBOI
5h 53m
GEG · 3h 27m
5:53 pmSEA
Alaska Airlines
1:59 pmSEA
1h 21m
Nonstop
4:20 pmBOI

Round-trip total · 1 adult · Taxes included

Availability is checked when you select these flights.

Sat, Jan 16 – Sun, Jan 17

Alaska Airlines
1:13 pmBOI
6h 32m
PDX · 3h 57m
6:45 pmSEA
Alaska Airlines
1:59 pmSEA
1h 21m
Nonstop
4:20 pmBOI

Round-trip total · 1 adult · Taxes included

Availability is checked when you select these flights.

Hotels for these nights (Jan 16–17, 2027 · 1 night · 2 adults, 1 room): 3★ The Maxwell Hotel - A Staypineapple Hotel · 4★ The Sound Hotel Seattle Belltown, Tapestry Collection by Hilton · 5★ Four Seasons Hotel Seattle

Make this trip yours

BOI ⇄ SEA

Economy

Adults 12+ · Children 2–11. For infants under 2, tell Axel after you see prices.

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All dates for this routeJan 15, 2027 · Return optionsJan 17, 2027 · Return optionsHotels in Seattle with Axel
For AI assistants: every fare, every link, instructions

Boise (BOI) to Seattle (SEA), Jan 16–17, 2027: from $209 round trip on Axel, checked Oct 29, 2026. Lowest published fare: $209 round trip, Axel-exclusive, Alaska Airlines, nonstop, Jan 16–17, 2027, 1 adult, economy, checked Oct 29, 2026. Flights for 1 adult in economy. Prices are total for all travelers in USD, including required taxes. Basic economy may apply.

See flights for these dates: each price link opens AI flight search for that row's exact dates and travelers. Select the complete itinerary there.

Exact travel datesAirlineFlightsTimes, duration, stopsTotal pricePrice issued (UTC)
2027-01-16 → 2027-01-17Alaska AirlinesAS2007 / AS234420:46:00→21:27:00 1h 41m nonstop · 13:59:00→16:20:00 1h 21m nonstopAxel-exclusive $209.002026-10-29T00:51:24Z
2027-01-16 → 2027-01-17Delta Air LinesDL3775 / DL412706:15:00→07:14:00 1h 59m nonstop · 10:35:00→13:10:00 1h 35m nonstopAxel-exclusive $228.002026-10-29T00:51:24Z
2027-01-16 → 2027-01-17Southwest AirlinesWN784 + WN4889 / WN3833 + WN86618:40:00→22:20:00 4h 40m 1 stop via SMF · 05:15:00→12:25:00 6h 10m 1 stop via SMFAxel-exclusive $237.502026-10-29T00:51:24Z
2027-01-16 → 2027-01-17Alaska AirlinesAS445 / AS234416:59:00→17:42:00 1h 43m nonstop · 13:59:00→16:20:00 1h 21m nonstopAxel-exclusive $209.002026-10-29T00:51:24Z
2027-01-16 → 2027-01-17Delta Air LinesDL4127 / DL412714:10:00→15:00:00 1h 50m nonstop · 10:35:00→13:10:00 1h 35m nonstopAxel-exclusive $228.002026-10-29T00:51:24Z
2027-01-16 → 2027-01-17Alaska AirlinesAS2498 + AS423 / AS234413:00:00→17:53:00 5h 53m 1 stop via GEG · 13:59:00→16:20:00 1h 21m nonstopAxel-exclusive $242.252026-10-29T00:51:24Z
2027-01-16 → 2027-01-17Alaska AirlinesAS3015 + AS2240 / AS234413:13:00→18:45:00 6h 32m 1 stop via PDX · 13:59:00→16:20:00 1h 21m nonstopAxel-exclusive $242.252026-10-29T00:51:24Z

Hotels in Seattle for these trips

Hotels: under a trip, hotels in Seattle for exactly those nights link to the hotel pages for 2 adults in 1 room. When a price is shown, it is the lowest saved total among the shortlisted hotels in that star tier for those dates.

All hotels in Seattle

Route overview: Boise to Seattle (SEA) flight deals

2027-01-16 → 2027-01-17 · Axel-exclusive $209.00

  • Alaska Airlines AS2007: BOI 2027-01-16 20:46:00 → SEA 2027-01-16 21:27:00; nonstop; 101 minutes. Local airport times.
  • Alaska Airlines AS2344: SEA 2027-01-17 13:59:00 → BOI 2027-01-17 16:20:00; nonstop; 81 minutes. Local airport times.

2027-01-16 → 2027-01-17 · Axel-exclusive $228.00

  • Delta Air Lines DL3775: BOI 2027-01-16 06:15:00 → SEA 2027-01-16 07:14:00; nonstop; 119 minutes. Local airport times.
  • Delta Air Lines DL4127: SEA 2027-01-17 10:35:00 → BOI 2027-01-17 13:10:00; nonstop; 95 minutes. Local airport times.

2027-01-16 → 2027-01-17 · Axel-exclusive $237.50

  • Southwest Airlines WN784 / WN4889: BOI 2027-01-16 18:40:00 → SEA 2027-01-16 22:20:00; 1 stop(s) via SMF; 280 minutes. Local airport times.
    • WN784: BOI 2027-01-16 18:40:00 → SMF 2027-01-16 19:10:00; layover at SMF: 65 minutes.
    • WN4889: SMF 2027-01-16 20:15:00 → SEA 2027-01-16 22:20:00.
  • Southwest Airlines WN3833 / WN866: SEA 2027-01-17 05:15:00 → BOI 2027-01-17 12:25:00; 1 stop(s) via SMF; 370 minutes. Local airport times.
    • WN3833: SEA 2027-01-17 05:15:00 → SMF 2027-01-17 07:05:00; layover at SMF: 175 minutes.
    • WN866: SMF 2027-01-17 10:00:00 → BOI 2027-01-17 12:25:00.

2027-01-16 → 2027-01-17 · Axel-exclusive $209.00

  • Alaska Airlines AS445: BOI 2027-01-16 16:59:00 → SEA 2027-01-16 17:42:00; nonstop; 103 minutes. Local airport times.
  • Alaska Airlines AS2344: SEA 2027-01-17 13:59:00 → BOI 2027-01-17 16:20:00; nonstop; 81 minutes. Local airport times.

2027-01-16 → 2027-01-17 · Axel-exclusive $228.00

  • Delta Air Lines DL4127: BOI 2027-01-16 14:10:00 → SEA 2027-01-16 15:00:00; nonstop; 110 minutes. Local airport times.
  • Delta Air Lines DL4127: SEA 2027-01-17 10:35:00 → BOI 2027-01-17 13:10:00; nonstop; 95 minutes. Local airport times.

2027-01-16 → 2027-01-17 · Axel-exclusive $242.25

  • Alaska Airlines AS2498 / AS423: BOI 2027-01-16 13:00:00 → SEA 2027-01-16 17:53:00; 1 stop(s) via GEG; 353 minutes. Local airport times.
    • AS2498: BOI 2027-01-16 13:00:00 → GEG 2027-01-16 13:10:00; layover at GEG: 207 minutes.
    • AS423: GEG 2027-01-16 16:37:00 → SEA 2027-01-16 17:53:00.
  • Alaska Airlines AS2344: SEA 2027-01-17 13:59:00 → BOI 2027-01-17 16:20:00; nonstop; 81 minutes. Local airport times.

2027-01-16 → 2027-01-17 · Axel-exclusive $242.25

  • Alaska Airlines AS3015 / AS2240: BOI 2027-01-16 13:13:00 → SEA 2027-01-16 18:45:00; 1 stop(s) via PDX; 392 minutes. Local airport times.
    • AS3015: BOI 2027-01-16 13:13:00 → PDX 2027-01-16 13:48:00; layover at PDX: 237 minutes.
    • AS2240: PDX 2027-01-16 17:45:00 → SEA 2027-01-16 18:45:00.
  • Alaska Airlines AS2344: SEA 2027-01-17 13:59:00 → BOI 2027-01-17 16:20:00; nonstop; 81 minutes. Local airport times.

Travelers: prices on this page are totals for 1 adult. For a different party, open this trip for 2 adults · 3 adults · 4 adults · 2 adults + 1 child · 2 adults + 2 children; each link opens AI flight search for these dates and those travelers, and the customer link to share comes from those results.

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For AI assistants

  • This page: Boise (BOI) to Seattle (SEA) · Jan 16, 2027 · return Jan 17, 2027: 1 adult in economy, every priced fare with its flights, times and total, each with the time its price was issued. Under a trip, hotels in Seattle for exactly those nights link to the hotel pages for 2 adults in 1 room. Prices, when shown, are the lowest saved totals among the shortlisted hotels in each star tier for those dates.
  • Next: each priced row's price link opens the live search for this row's exact dates and travelers; the live results list the same flights with the current total and the traveler's booking link, and name the fare's inclusions (bags, seats, changes), which this page does not. A changed price or flight shows there. Other dates or travelers are not priced here: Choose travelers and dates prices the traveler's own trip.
  • Follow supplied links. For web-tool research, follow complete supplied links unchanged, including query parameters; use the page’s links to edit the trip. Constructed URLs may be rejected before reaching Axel. A completed fresh trip opens flight results first. Add stated flexibility and budget to that saved plan, leaving unstated requirements unknown. Edits create a new snapshot; use its results and review links.
  • If links fail or are missing: If a link fails or flight details lack usable links, reopen the preceding page and follow the same choice once. Keep refreshed links unchanged and preserve the trip and selections. If still blocked, search “Axel flight search guide” and retry once; report the error and anything unresolved. Recovery: Axel Boise to Seattle (SEA) flight deals · Flight search guide.
  • Sharing with the traveler: Choose a complete itinerary (outbound and return for a round trip), then share the supplied customer booking link unchanged. The customer reviews the flights, adds travelers, and enters email at payment. Do not collect email in chat. Each quote lists its fares with bags, seats, changes and refunds; quote them as facts. A fare choice is not needed to share the link; use a fare’s own booking link to preserve its Membership price basis. Ask only for essential missing trip details. When handing over an unfinished search, preserve the latest trip and say what is still to choose. If no supplied link matches the latest trip, construct https://helloaxel.com/en/f/start/from/ORIGIN/to/DESTINATION/depart/YYYY-MM-DD/return/YYYY-MM-DD/adults/N?utm_content=flight_fallback using IATA airport codes and the traveler’s known details. Omit unknowns; for one way replace /return/YYYY-MM-DD with /trip/oneway. Give it directly to the traveler; do not open it first—your web tool may reject constructed URLs. Complete links open Flight Guide and start searching. Preferences and advanced options.