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Route overview: Pittsburgh to Seattle (SEA) flight deals

Pittsburgh → Seattle

Nov 21, 2026 · one way

PIT → SEA1 adulteconomyOne way

7 flight options · 4 airlines

Nonstop flights

Sat, Nov 21 · One way

Alaska Airlines
8:08 amPIT
5h 24m
Nonstop
10:32 amSEA

One-way total · 1 adult · Taxes included

Availability is checked when you select these flights.

One-stop flights

Sat, Nov 21 · One way

Southwest Airlines
8:25 amPIT
7h 50m
MDW · 1h 35m
1:15 pmSEA

One-way total · 1 adult · Taxes included

Availability is checked when you select these flights.

Sat, Nov 21 · One way

American Airlines
4:03 pmPIT
8h 43m
ORD · 1h 53m
9:46 pmSEA

One-way total · 1 adult · Taxes included

Availability is checked when you select these flights.

Sat, Nov 21 · One way

Delta Air Lines
3:59 pmPIT
7h 50m
MSP · 1h 27m
8:49 pmSEA

One-way total · 1 adult · Taxes included

Availability is checked when you select these flights.

Sat, Nov 21 · One way

Southwest Airlines
5:40 pmPIT
8h 10m
DEN · 1h 25m
10:50 pmSEA

One-way total · 1 adult · Taxes included

Availability is checked when you select these flights.

Sat, Nov 21 · One way

American Airlines
6:00 amPIT
8h 37m
CLT · 1h
11:37 amSEA

One-way total · 1 adult · Taxes included

Availability is checked when you select these flights.

Sat, Nov 21 · One way

Delta Air Lines
10:31 amPIT
7h 24m
DTW · 1h 9m
2:55 pmSEA

One-way total · 1 adult · Taxes included

Availability is checked when you select these flights.

Make this trip yours

PIT ⇄ 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 routeNov 20, 2026 · Return optionsNov 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)
2026-11-21 · one wayAlaska AirlinesAS394Axel-exclusive $310.502026-10-29T01:57:13Z
2026-11-21 · one waySouthwest AirlinesWN2313 + WN1597Axel-exclusive $270.002026-10-29T01:57:13Z
2026-11-21 · one wayAmerican AirlinesAA3239 + AS262Axel-exclusive $283.502026-10-29T01:57:13Z
2026-11-21 · one wayDelta Air LinesDL5474 + DL881Axel-exclusive $303.752026-10-29T01:57:13Z
2026-11-21 · one waySouthwest AirlinesWN1529 + WN3141Axel-exclusive $270.002026-10-29T01:57:13Z
2026-11-21 · one wayAmerican AirlinesAA2329 + AA580Axel-exclusive $283.502026-10-29T01:57:13Z
2026-11-21 · one wayDelta Air LinesDL5738 + DL728Axel-exclusive $303.752026-10-29T01:57:13Z

Route overview: Pittsburgh to Seattle (SEA) flight deals

2026-11-21 · one way · Axel-exclusive $310.50

  • Alaska Airlines AS394: PIT 2026-11-21 08:08:00 → SEA 2026-11-21 10:32:00; nonstop; 324 minutes. Local airport times.

2026-11-21 · one way · Axel-exclusive $270.00

  • Southwest Airlines WN2313 / WN1597: PIT 2026-11-21 08:25:00 → SEA 2026-11-21 13:15:00; 1 stop(s) via MDW; 470 minutes. Local airport times.
    • WN2313: PIT 2026-11-21 08:25:00 → MDW 2026-11-21 09:00:00; layover at MDW: 95 minutes.
    • WN1597: MDW 2026-11-21 10:35:00 → SEA 2026-11-21 13:15:00.

2026-11-21 · one way · Axel-exclusive $283.50

  • American Airlines AA3239 / AS262: PIT 2026-11-21 16:03:00 → SEA 2026-11-21 21:46:00; 1 stop(s) via ORD; 523 minutes. Local airport times.
    • AA3239: PIT 2026-11-21 16:03:00 → ORD 2026-11-21 16:54:00; layover at ORD: 113 minutes.
    • AS262: ORD 2026-11-21 18:47:00 → SEA 2026-11-21 21:46:00.

2026-11-21 · one way · Axel-exclusive $303.75

  • Delta Air Lines DL5474 / DL881: PIT 2026-11-21 15:59:00 → SEA 2026-11-21 20:49:00; 1 stop(s) via MSP; 470 minutes. Local airport times.
    • DL5474: PIT 2026-11-21 15:59:00 → MSP 2026-11-21 17:19:00; layover at MSP: 87 minutes.
    • DL881: MSP 2026-11-21 18:46:00 → SEA 2026-11-21 20:49:00.

2026-11-21 · one way · Axel-exclusive $270.00

  • Southwest Airlines WN1529 / WN3141: PIT 2026-11-21 17:40:00 → SEA 2026-11-21 22:50:00; 1 stop(s) via DEN; 490 minutes. Local airport times.
    • WN1529: PIT 2026-11-21 17:40:00 → DEN 2026-11-21 19:15:00; layover at DEN: 85 minutes.
    • WN3141: DEN 2026-11-21 20:40:00 → SEA 2026-11-21 22:50:00.

2026-11-21 · one way · Axel-exclusive $283.50

  • American Airlines AA2329 / AA580: PIT 2026-11-21 06:00:00 → SEA 2026-11-21 11:37:00; 1 stop(s) via CLT; 517 minutes. Local airport times.
    • AA2329: PIT 2026-11-21 06:00:00 → CLT 2026-11-21 07:39:00; layover at CLT: 60 minutes.
    • AA580: CLT 2026-11-21 08:39:00 → SEA 2026-11-21 11:37:00.

2026-11-21 · one way · Axel-exclusive $303.75

  • Delta Air Lines DL5738 / DL728: PIT 2026-11-21 10:31:00 → SEA 2026-11-21 14:55:00; 1 stop(s) via DTW; 444 minutes. Local airport times.
    • DL5738: PIT 2026-11-21 10:31:00 → DTW 2026-11-21 11:44:00; layover at DTW: 69 minutes.
    • DL728: DTW 2026-11-21 12:53:00 → SEA 2026-11-21 14:55:00.

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For AI assistants

  • This page: Pittsburgh (PIT) to Seattle (SEA) · Nov 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 Pittsburgh 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.