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Route overview: Atlanta to Seattle (SEA) flight deals

Atlanta → Seattle

Dec 21, 2026 · one way

ATL → SEA1 adulteconomyOne way

10 flight options · 3 airlines

Nonstop flights

Mon, Dec 21 · One way

Alaska Airlines
3:59 pmATL
5h 41m
Nonstop
6:40 pmSEA

One-way total · 1 adult · Taxes included

Availability is checked when you select these flights.

Mon, Dec 21 · One way

Delta Air Lines
9:15 pmATL
5h 40m
Nonstop
11:55 pmSEA

One-way total · 1 adult · Taxes included

Availability is checked when you select these flights.

Mon, Dec 21 · One way

Alaska Airlines
8:03 amATL
5h 34m
Nonstop
10:37 amSEA

One-way total · 1 adult · Taxes included

Availability is checked when you select these flights.

Mon, Dec 21 · One way

Delta Air Lines
2:11 pmATL
5h 36m
Nonstop
4:47 pmSEA

One-way total · 1 adult · Taxes included

Availability is checked when you select these flights.

One-stop flights

Mon, Dec 21 · One way

Southwest Airlines
6:15 amATL
7h 25m
DEN · 1h
10:40 amSEA

One-way total · 1 adult · Taxes included

Availability is checked when you select these flights.

Mon, Dec 21 · One way

Alaska Airlines
5:55 pmATL
8h 5m
PDX · 1h 25m
11:00 pmSEA

One-way total · 1 adult · Taxes included

Availability is checked when you select these flights.

Mon, Dec 21 · One way

Delta Air Lines
10:00 amATL
7h 30m
GEG · 1h 4m
2:30 pmSEA

One-way total · 1 adult · Taxes included

Availability is checked when you select these flights.

Mon, Dec 21 · One way

Delta Air Lines
10:25 amATL
8h
DEN · 1h 20m
3:25 pmSEA

One-way total · 1 adult · Taxes included

Availability is checked when you select these flights.

Mon, Dec 21 · One way

Delta Air Lines
8:05 amATL
7h 31m
SLC · 1h
12:36 pmSEA

One-way total · 1 adult · Taxes included

Availability is checked when you select these flights.

Mon, Dec 21 · One way

Delta Air Lines
11:00 amATL
7h 29m
PDX · 1h 1m
3:29 pmSEA

One-way total · 1 adult · Taxes included

Availability is checked when you select these flights.

Make this trip yours

ATL ⇄ SEA

Economy

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

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Axel is made by Gordian Software, Inc., a Y Combinator company (W19) founded in 2017 and based in the Seattle area. The company is led by CEO Stephen Grabowski, formerly of Skyscanner. How Axel works · About

Explore this route

All dates for this routeDec 20, 2026 · Return optionsDec 22, 2026 · Return optionsHotels in Seattle with Axel
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.

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 datesAirlineFlightsTotal pricePrice issued (UTC)
2026-12-21 · one wayAlaska AirlinesAS218Axel-exclusive $236.252026-10-29T00:45:54Z
2026-12-21 · one wayDelta Air LinesDL903Axel-exclusive $249.752026-10-29T00:45:54Z
2026-12-21 · one waySouthwest AirlinesWN215 + WN1788Axel-exclusive $222.752026-10-29T00:45:54Z
2026-12-21 · one wayAlaska AirlinesAS348Axel-exclusive $236.252026-10-29T00:45:54Z
2026-12-21 · one wayDelta Air LinesDL472Axel-exclusive $249.752026-10-29T00:45:54Z
2026-12-21 · one wayAlaska AirlinesAS783 + AS1432Axel-exclusive $222.752026-10-29T00:45:54Z
2026-12-21 · one wayDelta Air LinesDL566 + DL3754Axel-exclusive $236.252026-10-29T00:45:54Z
2026-12-21 · one wayDelta Air LinesDL995 + DL2740Axel-exclusive $236.252026-10-29T00:45:54Z
2026-12-21 · one wayDelta Air LinesDL830 + DL2995Axel-exclusive $236.252026-10-29T00:45:54Z
2026-12-21 · one wayDelta Air LinesDL2206 + DL3802Axel-exclusive $236.252026-10-29T00:45:54Z

Route overview: Atlanta to Seattle (SEA) flight deals

2026-12-21 · one way · Axel-exclusive $236.25

  • Alaska Airlines AS218: ATL 2026-12-21 15:59:00 → SEA 2026-12-21 18:40:00; nonstop; 341 minutes. Local airport times.

2026-12-21 · one way · Axel-exclusive $249.75

  • Delta Air Lines DL903: ATL 2026-12-21 21:15:00 → SEA 2026-12-21 23:55:00; nonstop; 340 minutes. Local airport times.

2026-12-21 · one way · Axel-exclusive $222.75

  • Southwest Airlines WN215 / WN1788: ATL 2026-12-21 06:15:00 → SEA 2026-12-21 10:40:00; 1 stop(s) via DEN; 445 minutes. Local airport times.
    • WN215: ATL 2026-12-21 06:15:00 → DEN 2026-12-21 07:30:00; layover at DEN: 60 minutes.
    • WN1788: DEN 2026-12-21 08:30:00 → SEA 2026-12-21 10:40:00.

2026-12-21 · one way · Axel-exclusive $236.25

  • Alaska Airlines AS348: ATL 2026-12-21 08:03:00 → SEA 2026-12-21 10:37:00; nonstop; 334 minutes. Local airport times.

2026-12-21 · one way · Axel-exclusive $249.75

  • Delta Air Lines DL472: ATL 2026-12-21 14:11:00 → SEA 2026-12-21 16:47:00; nonstop; 336 minutes. Local airport times.

2026-12-21 · one way · Axel-exclusive $222.75

  • Alaska Airlines AS783 / AS1432: ATL 2026-12-21 17:55:00 → SEA 2026-12-21 23:00:00; 1 stop(s) via PDX; 485 minutes. Local airport times.
    • AS783: ATL 2026-12-21 17:55:00 → PDX 2026-12-21 20:34:00; layover at PDX: 85 minutes.
    • AS1432: PDX 2026-12-21 21:59:00 → SEA 2026-12-21 23:00:00.

2026-12-21 · one way · Axel-exclusive $236.25

  • Delta Air Lines DL566 / DL3754: ATL 2026-12-21 10:00:00 → SEA 2026-12-21 14:30:00; 1 stop(s) via GEG; 450 minutes. Local airport times.
    • DL566: ATL 2026-12-21 10:00:00 → GEG 2026-12-21 12:06:00; layover at GEG: 64 minutes.
    • DL3754: GEG 2026-12-21 13:10:00 → SEA 2026-12-21 14:30:00.

2026-12-21 · one way · Axel-exclusive $236.25

  • Delta Air Lines DL995 / DL2740: ATL 2026-12-21 10:25:00 → SEA 2026-12-21 15:25:00; 1 stop(s) via DEN; 480 minutes. Local airport times.
    • DL995: ATL 2026-12-21 10:25:00 → DEN 2026-12-21 11:54:00; layover at DEN: 80 minutes.
    • DL2740: DEN 2026-12-21 13:14:00 → SEA 2026-12-21 15:25:00.

2026-12-21 · one way · Axel-exclusive $236.25

  • Delta Air Lines DL830 / DL2995: ATL 2026-12-21 08:05:00 → SEA 2026-12-21 12:36:00; 1 stop(s) via SLC; 451 minutes. Local airport times.
    • DL830: ATL 2026-12-21 08:05:00 → SLC 2026-12-21 10:15:00; layover at SLC: 60 minutes.
    • DL2995: SLC 2026-12-21 11:15:00 → SEA 2026-12-21 12:36:00.

2026-12-21 · one way · Axel-exclusive $236.25

  • Delta Air Lines DL2206 / DL3802: ATL 2026-12-21 11:00:00 → SEA 2026-12-21 15:29:00; 1 stop(s) via PDX; 449 minutes. Local airport times.
    • DL2206: ATL 2026-12-21 11:00:00 → PDX 2026-12-21 13:14:00; layover at PDX: 61 minutes.
    • DL3802: PDX 2026-12-21 14:15:00 → SEA 2026-12-21 15:29:00.

Explore this route

For AI assistants

  • This page: Atlanta (ATL) to Seattle (SEA) · Dec 21, 2026 · one way: 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 a priced row, follow that row's price link into AI flight search. Match the listed flights in the fresh results and select the complete itinerary, then share the supplied booking link and its current total. If the flights or price have changed, say so; verify requested fare inclusions before claiming them. 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 Atlanta 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.