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Route overview: Kansas City to Seattle (SEA) flight deals

Kansas City (MCI) to Seattle (SEA), Jan 4–11, 2027: from $314 round trip

Kansas City (MCI) to Seattle (SEA), Jan 4–11, 2027: from $314 round trip on Axel, checked Oct 29, 2026. Lowest published fare: $314 round trip, Axel-exclusive, Southwest Airlines, 1 stop, Jan 4–11, 2027, 1 adult, economy, checked Oct 29, 2026.

MCI → SEA1 adulteconomyRound trip

8 flight options · 4 airlines

Nonstop flights

Mon, Jan 4 – Mon, Jan 11

Alaska Airlines
6:00 amMCI
4h 20m
Nonstop
8:20 amSEA
Alaska Airlines
8:16 amSEA
3h 34m
Nonstop
1:50 pmMCI

Round-trip total · 1 adult · Taxes included

Availability is checked when you select these flights.

Mon, Jan 4 – Mon, Jan 11

Alaska Airlines
2:46 pmMCI
4h 12m
Nonstop
4:58 pmSEA
Alaska Airlines
8:16 amSEA
3h 34m
Nonstop
1:50 pmMCI

Round-trip total · 1 adult · Taxes included

Availability is checked when you select these flights.

One-stop flights

Mon, Jan 4 – Mon, Jan 11

Southwest Airlines
1:30 pmMCI
7h 10m
SMF · 1h 25m
6:40 pmSEA
Southwest Airlines
9:25 amSEA
5h 10m
DEN · 1h
4:35 pmMCI

Round-trip total · 1 adult · Taxes included

Availability is checked when you select these flights.

Mon, Jan 4 – Mon, Jan 11

United Airlines
9:48 amMCI
7h 44m
ORD · 1h 11m
3:32 pmSEA
United Airlines
5:05 amSEA
5h 23m
DEN · 1h 3m
12:28 pmMCI

Round-trip total · 1 adult · Taxes included

Availability is checked when you select these flights.

Mon, Jan 4 – Mon, Jan 11

Delta Air Lines
7:00 amMCI
4h 21m
Nonstop
9:21 amSEA
Delta Air Lines
9:18 amSEA
5h 51m
SLC · 1h 16m
5:09 pmMCI

Round-trip total · 1 adult · Taxes included

Availability is checked when you select these flights.

Mon, Jan 4 – Mon, Jan 11

Southwest Airlines
5:20 amMCI
7h 15m
DAL · 1h 10m
10:35 amSEA
Southwest Airlines
9:25 amSEA
5h 10m
DEN · 1h
4:35 pmMCI

Round-trip total · 1 adult · Taxes included

Availability is checked when you select these flights.

Mon, Jan 4 – Mon, Jan 11

United Airlines
7:00 amMCI
7h 18m
SFO · 1h
12:18 pmSEA
United Airlines
5:05 amSEA
5h 23m
DEN · 1h 3m
12:28 pmMCI

Round-trip total · 1 adult · Taxes included

Availability is checked when you select these flights.

Mon, Jan 4 – Mon, Jan 11

United Airlines
5:19 pmMCI
7h 57m
DEN · 2h 50m
11:16 pmSEA
United Airlines
5:05 amSEA
5h 23m
DEN · 1h 3m
12:28 pmMCI

Round-trip total · 1 adult · Taxes included

Availability is checked when you select these flights.

Make this trip yours

MCI ⇄ SEA

Economy

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

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Explore this route

All dates for this routeJan 3, 2027 · Return optionsJan 5, 2027 · Return optionsHotels in Seattle with Axel
For AI assistants: every fare, every link, instructions

Kansas City (MCI) to Seattle (SEA), Jan 4–11, 2027: from $314 round trip on Axel, checked Oct 29, 2026. Lowest published fare: $314 round trip, Axel-exclusive, Southwest Airlines, 1 stop, Jan 4–11, 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)
2027-01-04 → 2027-01-11Alaska AirlinesAS563 / AS41806:00:00→08:20:00 4h 20m nonstop · 08:16:00→13:50:00 3h 34m nonstopAxel-exclusive $337.262026-10-29T01:28:15Z
2027-01-04 → 2027-01-11Southwest AirlinesWN2769 + WN1586 / WN2150 + WN207513:30:00→18:40:00 7h 10m 1 stop via SMF · 09:25:00→16:35:00 5h 10m 1 stop via DENAxel-exclusive $313.502026-10-29T01:28:15Z
2027-01-04 → 2027-01-11United AirlinesUA5270 + UA1660 / UA757 + UA215909:48:00→15:32:00 7h 44m 1 stop via ORD · 05:05:00→12:28:00 5h 23m 1 stop via DENAxel-exclusive $332.502026-10-29T01:28:15Z
2027-01-04 → 2027-01-11Delta Air LinesDL2105 / DL1016 + DL290307:00:00→09:21:00 4h 21m nonstop · 09:18:00→17:09:00 5h 51m 1 stop via SLCAxel-exclusive $337.262026-10-29T01:28:15Z
2027-01-04 → 2027-01-11Alaska AirlinesAS418 / AS41814:46:00→16:58:00 4h 12m nonstop · 08:16:00→13:50:00 3h 34m nonstopAxel-exclusive $337.262026-10-29T01:28:15Z
2027-01-04 → 2027-01-11Southwest AirlinesWN1349 + WN534 / WN2150 + WN207505:20:00→10:35:00 7h 15m 1 stop via DAL · 09:25:00→16:35:00 5h 10m 1 stop via DENAxel-exclusive $313.502026-10-29T01:28:15Z
2027-01-04 → 2027-01-11United AirlinesUA2051 + UA2192 / UA757 + UA215907:00:00→12:18:00 7h 18m 1 stop via SFO · 05:05:00→12:28:00 5h 23m 1 stop via DENAxel-exclusive $332.502026-10-29T01:28:15Z
2027-01-04 → 2027-01-11United AirlinesUA2123 + UA2651 / UA757 + UA215917:19:00→23:16:00 7h 57m 1 stop via DEN · 05:05:00→12:28:00 5h 23m 1 stop via DENAxel-exclusive $332.502026-10-29T01:28:15Z

Route overview: Kansas City to Seattle (SEA) flight deals

2027-01-04 → 2027-01-11 · Axel-exclusive $337.26

  • Alaska Airlines AS563: MCI 2027-01-04 06:00:00 → SEA 2027-01-04 08:20:00; nonstop; 260 minutes. Local airport times.
  • Alaska Airlines AS418: SEA 2027-01-11 08:16:00 → MCI 2027-01-11 13:50:00; nonstop; 214 minutes. Local airport times.

2027-01-04 → 2027-01-11 · Axel-exclusive $313.50

  • Southwest Airlines WN2769 / WN1586: MCI 2027-01-04 13:30:00 → SEA 2027-01-04 18:40:00; 1 stop(s) via SMF; 430 minutes. Local airport times.
    • WN2769: MCI 2027-01-04 13:30:00 → SMF 2027-01-04 15:15:00; layover at SMF: 85 minutes.
    • WN1586: SMF 2027-01-04 16:40:00 → SEA 2027-01-04 18:40:00.
  • Southwest Airlines WN2150 / WN2075: SEA 2027-01-11 09:25:00 → MCI 2027-01-11 16:35:00; 1 stop(s) via DEN; 310 minutes. Local airport times.
    • WN2150: SEA 2027-01-11 09:25:00 → DEN 2027-01-11 13:00:00; layover at DEN: 60 minutes.
    • WN2075: DEN 2027-01-11 14:00:00 → MCI 2027-01-11 16:35:00.

2027-01-04 → 2027-01-11 · Axel-exclusive $332.50

  • United Airlines UA5270 / UA1660: MCI 2027-01-04 09:48:00 → SEA 2027-01-04 15:32:00; 1 stop(s) via ORD; 464 minutes. Local airport times.
    • UA5270: MCI 2027-01-04 09:48:00 → ORD 2027-01-04 11:34:00; layover at ORD: 71 minutes.
    • UA1660: ORD 2027-01-04 12:45:00 → SEA 2027-01-04 15:32:00.
  • United Airlines UA757 / UA2159: SEA 2027-01-11 05:05:00 → MCI 2027-01-11 12:28:00; 1 stop(s) via DEN; 323 minutes. Local airport times.
    • UA757: SEA 2027-01-11 05:05:00 → DEN 2027-01-11 08:42:00; layover at DEN: 63 minutes.
    • UA2159: DEN 2027-01-11 09:45:00 → MCI 2027-01-11 12:28:00.

2027-01-04 → 2027-01-11 · Axel-exclusive $337.26

  • Delta Air Lines DL2105: MCI 2027-01-04 07:00:00 → SEA 2027-01-04 09:21:00; nonstop; 261 minutes. Local airport times.
  • Delta Air Lines DL1016 / DL2903: SEA 2027-01-11 09:18:00 → MCI 2027-01-11 17:09:00; 1 stop(s) via SLC; 351 minutes. Local airport times.
    • DL1016: SEA 2027-01-11 09:18:00 → SLC 2027-01-11 12:31:00; layover at SLC: 76 minutes.
    • DL2903: SLC 2027-01-11 13:47:00 → MCI 2027-01-11 17:09:00.

2027-01-04 → 2027-01-11 · Axel-exclusive $337.26

  • Alaska Airlines AS418: MCI 2027-01-04 14:46:00 → SEA 2027-01-04 16:58:00; nonstop; 252 minutes. Local airport times.
  • Alaska Airlines AS418: SEA 2027-01-11 08:16:00 → MCI 2027-01-11 13:50:00; nonstop; 214 minutes. Local airport times.

2027-01-04 → 2027-01-11 · Axel-exclusive $313.50

  • Southwest Airlines WN1349 / WN534: MCI 2027-01-04 05:20:00 → SEA 2027-01-04 10:35:00; 1 stop(s) via DAL; 435 minutes. Local airport times.
    • WN1349: MCI 2027-01-04 05:20:00 → DAL 2027-01-04 07:00:00; layover at DAL: 70 minutes.
    • WN534: DAL 2027-01-04 08:10:00 → SEA 2027-01-04 10:35:00.
  • Southwest Airlines WN2150 / WN2075: SEA 2027-01-11 09:25:00 → MCI 2027-01-11 16:35:00; 1 stop(s) via DEN; 310 minutes. Local airport times.
    • WN2150: SEA 2027-01-11 09:25:00 → DEN 2027-01-11 13:00:00; layover at DEN: 60 minutes.
    • WN2075: DEN 2027-01-11 14:00:00 → MCI 2027-01-11 16:35:00.

2027-01-04 → 2027-01-11 · Axel-exclusive $332.50

  • United Airlines UA2051 / UA2192: MCI 2027-01-04 07:00:00 → SEA 2027-01-04 12:18:00; 1 stop(s) via SFO; 438 minutes. Local airport times.
    • UA2051: MCI 2027-01-04 07:00:00 → SFO 2027-01-04 09:05:00; layover at SFO: 60 minutes.
    • UA2192: SFO 2027-01-04 10:05:00 → SEA 2027-01-04 12:18:00.
  • United Airlines UA757 / UA2159: SEA 2027-01-11 05:05:00 → MCI 2027-01-11 12:28:00; 1 stop(s) via DEN; 323 minutes. Local airport times.
    • UA757: SEA 2027-01-11 05:05:00 → DEN 2027-01-11 08:42:00; layover at DEN: 63 minutes.
    • UA2159: DEN 2027-01-11 09:45:00 → MCI 2027-01-11 12:28:00.

2027-01-04 → 2027-01-11 · Axel-exclusive $332.50

  • United Airlines UA2123 / UA2651: MCI 2027-01-04 17:19:00 → SEA 2027-01-04 23:16:00; 1 stop(s) via DEN; 477 minutes. Local airport times.
    • UA2123: MCI 2027-01-04 17:19:00 → DEN 2027-01-04 18:20:00; layover at DEN: 170 minutes.
    • UA2651: DEN 2027-01-04 21:10:00 → SEA 2027-01-04 23:16:00.
  • United Airlines UA757 / UA2159: SEA 2027-01-11 05:05:00 → MCI 2027-01-11 12:28:00; 1 stop(s) via DEN; 323 minutes. Local airport times.
    • UA757: SEA 2027-01-11 05:05:00 → DEN 2027-01-11 08:42:00; layover at DEN: 63 minutes.
    • UA2159: DEN 2027-01-11 09:45:00 → MCI 2027-01-11 12:28:00.

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: Kansas City (MCI) to Seattle (SEA) · Jan 4, 2027 · return Jan 11, 2027: 1 adult in economy, every priced fare with its flights, times and total, each with the time its price was issued.
  • 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 Kansas City 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.