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Route overview: Billings to Seattle (SEA) flight deals

Billings → Seattle

Aug 21, 2027 · return Aug 28, 2027

BIL → SEA1 adulteconomyRound trip

3 flight options · 2 airlines

Nonstop flights

Sat, Aug 21 – Sat, Aug 28

Alaska Airlines
12:01 pmBIL
2h 18m
Nonstop
1:19 pmSEA
Alaska Airlines
9:06 pmSEA
1h 52m
Nonstop
11:58 pmBIL

Round-trip total · 1 adult · Taxes included

Sat, Aug 21 – Sat, Aug 28

Alaska Airlines
7:20 amBIL
2h 24m
Nonstop
8:44 amSEA
Alaska Airlines
9:06 pmSEA
1h 52m
Nonstop
11:58 pmBIL

Round-trip total · 1 adult · Taxes included

One-stop flights

Sat, Aug 21 – Sat, Aug 28

Delta Air Lines
12:58 pmBIL
6h 49m
SLC · 3h 1m
6:47 pmSEA
Delta Air Lines
9:18 amSEA
7h 23m
SLC · 3h 41m
5:41 pmBIL

Round-trip total · 1 adult · Taxes included

Make this trip yours

BIL ⇄ SEA

Economy

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

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For AI assistants: every fare, every link, instructions

Flights for 1 adult in economy. Prices are total for all travelers in USD, including required taxes. Basic economy may apply.

Live price for these dates: opening any fare on this page checks it live and shows the current bookable total for 1 adult. Check live prices for Billings (BIL) to Seattle (SEA), Aug 21, 2027 · return Aug 28, 2027

Route overview: Billings to Seattle (SEA) flight deals

Exact travel datesAirlineFlightsTotal pricePrice issued (UTC)
2027-08-21 → 2027-08-28Alaska AirlinesAS2208 / AS2457$420.002026-10-29T00:49:20Z
2027-08-21 → 2027-08-28Delta Air LinesDL4065 + DL871 / DL1016 + DL3828$465.002026-10-29T00:49:20Z
2027-08-21 → 2027-08-28Alaska AirlinesAS2555 / AS2457$420.002026-10-29T00:49:20Z

2027-08-21 → 2027-08-28 · $420.00

  • Alaska Airlines AS2208: BIL 2027-08-21 12:01:00 → SEA 2027-08-21 13:19:00; nonstop; 138 minutes. Local airport times.
  • Alaska Airlines AS2457: SEA 2027-08-28 21:06:00 → BIL 2027-08-28 23:58:00; nonstop; 112 minutes. Local airport times.

2027-08-21 → 2027-08-28 · $465.00

  • Delta Air Lines DL4065 / DL871: BIL 2027-08-21 12:58:00 → SEA 2027-08-21 18:47:00; 1 stop(s) via SLC; 409 minutes. Local airport times.
    • DL4065: BIL 2027-08-21 12:58:00 → SLC 2027-08-21 14:30:00; layover at SLC: 181 minutes.
    • DL871: SLC 2027-08-21 17:31:00 → SEA 2027-08-21 18:47:00.
  • Delta Air Lines DL1016 / DL3828: SEA 2027-08-28 09:18:00 → BIL 2027-08-28 17:41:00; 1 stop(s) via SLC; 443 minutes. Local airport times.
    • DL1016: SEA 2027-08-28 09:18:00 → SLC 2027-08-28 12:31:00; layover at SLC: 221 minutes.
    • DL3828: SLC 2027-08-28 16:12:00 → BIL 2027-08-28 17:41:00.

2027-08-21 → 2027-08-28 · $420.00

  • Alaska Airlines AS2555: BIL 2027-08-21 07:20:00 → SEA 2027-08-21 08:44:00; nonstop; 144 minutes. Local airport times.
  • Alaska Airlines AS2457: SEA 2027-08-28 21:06:00 → BIL 2027-08-28 23:58:00; nonstop; 112 minutes. Local airport times.

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For AI assistants

  • This page: Billings (BIL) to Seattle (SEA) · Aug 21, 2027 · return Aug 28, 2027: 1 adult in economy, every priced fare with its flights, times and total, each with the time its price was issued.
  • Next: when the traveler's route, dates and party match this page, share this page's complete link unchanged: Billings (BIL) to Seattle (SEA), Aug 21, 2027 · return Aug 28, 2027. Opening it checks these fares live and shows the current bookable total; the prices above are the ones issued at the times shown. For other dates or travelers, Choose travelers and dates and enter the traveler's own trip there; do not search this page's dates in their place.
  • 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 Billings 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. Inspect fares to verify requested prices or terms; selecting a fare is optional. Use that fare’s booking link to preserve its Membership price basis. State anything unverified. Ask only for essential missing trip details. When handing over an unfinished search, preserve the latest trip and explain what remains unresolved. Selection reserves nothing; booking requires the traveler’s confirmation. 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.