Travel with Axel,
get the best price.

Route overview: Seattle to Atlanta (ATL) flight deals

Seattle → Atlanta

Dec 21, 2026 · one way

SEA → ATL1 adulteconomyOne way

10 flight options · 5 airlines

Nonstop flights

Mon, Dec 21 · One way

Alaska Airlines
9:46 pmSEA
4h 47m
Nonstop
5:33 am+1ATL

One-way total · 1 adult · Taxes included

Availability is checked when you select these flights.

Mon, Dec 21 · One way

Delta Air Lines
10:40 pmSEA
4h 38m
Nonstop
6:18 am+1ATL

One-way total · 1 adult · Taxes included

Availability is checked when you select these flights.

Mon, Dec 21 · One way

Alaska Airlines
9:06 amSEA
4h 46m
Nonstop
4:52 pmATL

One-way total · 1 adult · Taxes included

Availability is checked when you select these flights.

Mon, Dec 21 · One way

Delta Air Lines
8:30 amSEA
4h 49m
Nonstop
4:19 pmATL

One-way total · 1 adult · Taxes included

Availability is checked when you select these flights.

One-stop flights

Mon, Dec 21 · One way

Frontier Airlines
1:37 pmSEA
6h 51m
DEN · 1h 5m
11:28 pmATL

One-way total · 1 adult · Taxes included

Availability is checked when you select these flights.

Mon, Dec 21 · One way

Southwest Airlines
9:10 amSEA
7h 20m
AUS · 1h 10m
7:30 pmATL

One-way total · 1 adult · Taxes included

Availability is checked when you select these flights.

Mon, Dec 21 · One way

United Airlines
5:00 amSEA
7h 7m
DEN · 1h 24m
3:07 pmATL

One-way total · 1 adult · Taxes included

Availability is checked when you select these flights.

Mon, Dec 21 · One way

Delta Air Lines
9:18 amSEA
7h 9m
SLC · 1h 24m
7:27 pmATL

One-way total · 1 adult · Taxes included

Availability is checked when you select these flights.

Mon, Dec 21 · One way

Delta Air Lines
8:30 amSEA
6h 54m
MSP · 1h 3m
6:24 pmATL

One-way total · 1 adult · Taxes included

Availability is checked when you select these flights.

Mon, Dec 21 · One way

Delta Air Lines
9:13 amSEA
7h 5m
DEN · 1h 25m
7:18 pmATL

One-way total · 1 adult · Taxes included

Availability is checked when you select these flights.

Make this trip yours

SEA ⇄ ATL

Economy

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

No account needed to see prices.

Already have an account? Log in

Why book with Axel
  • A real airline bookingThe booking is in the airline’s own system under your name. After you book, Alaska Airlines emails you its confirmation code and e-ticket, usually within 15 minutes and occasionally up to a couple of hours while the booking is processed.
  • Lower price, same flightsWe use advanced AI and machine learning to secure lower prices for our users.
  • Not satisfied? Full refund.If you are unhappy with the experience for any reason, or simply change your mind, cancel within 24 hours of booking (departure 7+ days away) and we refund you in full. We stand by our product. Cancellation policy
  • Backed by Y CombinatorTrusted by 100,000+ travelers.

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

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 AirlinesAS727Axel-exclusive $266.502026-10-29T01:14:23Z
2026-12-21 · one wayDelta Air LinesDL567Axel-exclusive $292.502026-10-29T01:14:23Z
2026-12-21 · one wayFrontier AirlinesF91916 + F93294Axel-exclusive $156.002026-10-29T01:14:23Z
2026-12-21 · one waySouthwest AirlinesWN4519 + WN2357Axel-exclusive $253.502026-10-29T01:14:23Z
2026-12-21 · one wayUnited AirlinesUA2601 + UA1490Axel-exclusive $266.502026-10-29T01:14:23Z
2026-12-21 · one wayAlaska AirlinesAS334Axel-exclusive $266.502026-10-29T01:14:23Z
2026-12-21 · one wayDelta Air LinesDL562Axel-exclusive $292.502026-10-29T01:14:23Z
2026-12-21 · one wayDelta Air LinesDL1016 + DL906Axel-exclusive $266.502026-10-29T01:14:23Z
2026-12-21 · one wayDelta Air LinesDL536 + DL1036Axel-exclusive $266.502026-10-29T01:14:23Z
2026-12-21 · one wayDelta Air LinesDL1358 + DL706Axel-exclusive $266.502026-10-29T01:14:23Z

Route overview: Seattle to Atlanta (ATL) flight deals

2026-12-21 · one way · Axel-exclusive $266.50

  • Alaska Airlines AS727: SEA 2026-12-21 21:46:00 → ATL 2026-12-22 05:33:00; nonstop; 287 minutes. Local airport times.

2026-12-21 · one way · Axel-exclusive $292.50

  • Delta Air Lines DL567: SEA 2026-12-21 22:40:00 → ATL 2026-12-22 06:18:00; nonstop; 278 minutes. Local airport times.

2026-12-21 · one way · Axel-exclusive $156.00

  • Frontier Airlines F91916 / F93294: SEA 2026-12-21 13:37:00 → ATL 2026-12-21 23:28:00; 1 stop(s) via DEN; 411 minutes. Local airport times.
    • F91916: SEA 2026-12-21 13:37:00 → DEN 2026-12-21 17:26:00; layover at DEN: 65 minutes.
    • F93294: DEN 2026-12-21 18:31:00 → ATL 2026-12-21 23:28:00.

2026-12-21 · one way · Axel-exclusive $253.50

  • Southwest Airlines WN4519 / WN2357: SEA 2026-12-21 09:10:00 → ATL 2026-12-21 19:30:00; 1 stop(s) via AUS; 440 minutes. Local airport times.
    • WN4519: SEA 2026-12-21 09:10:00 → AUS 2026-12-21 15:10:00; layover at AUS: 70 minutes.
    • WN2357: AUS 2026-12-21 16:20:00 → ATL 2026-12-21 19:30:00.

2026-12-21 · one way · Axel-exclusive $266.50

  • United Airlines UA2601 / UA1490: SEA 2026-12-21 05:00:00 → ATL 2026-12-21 15:07:00; 1 stop(s) via DEN; 427 minutes. Local airport times.
    • UA2601: SEA 2026-12-21 05:00:00 → DEN 2026-12-21 08:41:00; layover at DEN: 84 minutes.
    • UA1490: DEN 2026-12-21 10:05:00 → ATL 2026-12-21 15:07:00.

2026-12-21 · one way · Axel-exclusive $266.50

  • Alaska Airlines AS334: SEA 2026-12-21 09:06:00 → ATL 2026-12-21 16:52:00; nonstop; 286 minutes. Local airport times.

2026-12-21 · one way · Axel-exclusive $292.50

  • Delta Air Lines DL562: SEA 2026-12-21 08:30:00 → ATL 2026-12-21 16:19:00; nonstop; 289 minutes. Local airport times.

2026-12-21 · one way · Axel-exclusive $266.50

  • Delta Air Lines DL1016 / DL906: SEA 2026-12-21 09:18:00 → ATL 2026-12-21 19:27:00; 1 stop(s) via SLC; 429 minutes. Local airport times.
    • DL1016: SEA 2026-12-21 09:18:00 → SLC 2026-12-21 12:31:00; layover at SLC: 84 minutes.
    • DL906: SLC 2026-12-21 13:55:00 → ATL 2026-12-21 19:27:00.

2026-12-21 · one way · Axel-exclusive $266.50

  • Delta Air Lines DL536 / DL1036: SEA 2026-12-21 08:30:00 → ATL 2026-12-21 18:24:00; 1 stop(s) via MSP; 414 minutes. Local airport times.
    • DL536: SEA 2026-12-21 08:30:00 → MSP 2026-12-21 13:48:00; layover at MSP: 63 minutes.
    • DL1036: MSP 2026-12-21 14:51:00 → ATL 2026-12-21 18:24:00.

2026-12-21 · one way · Axel-exclusive $266.50

  • Delta Air Lines DL1358 / DL706: SEA 2026-12-21 09:13:00 → ATL 2026-12-21 19:18:00; 1 stop(s) via DEN; 425 minutes. Local airport times.
    • DL1358: SEA 2026-12-21 09:13:00 → DEN 2026-12-21 13:04:00; layover at DEN: 85 minutes.
    • DL706: DEN 2026-12-21 14:29:00 → ATL 2026-12-21 19:18:00.

Explore this route

For AI assistants

  • This page: Seattle (SEA) to Atlanta (ATL) · 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 Seattle to Atlanta (ATL) 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.