Travel with Axel,
get the best price.

Route overview: Milwaukee to Seattle (SEA) flight deals

Milwaukee → Seattle

Aug 21, 2027 · return Aug 28, 2027

MKE → SEA1 adulteconomyRound trip

8 flight options · 5 airlines

Nonstop flights

Sat, Aug 21 – Sat, Aug 28

Alaska Airlines
6:00 amMKE
4h 45m
Nonstop
8:45 amSEA
Alaska Airlines
6:09 pmSEA
3h 50m
Nonstop
11:59 pmMKE

Round-trip total · 1 adult · Taxes included

Sat, Aug 21 – Sat, Aug 28

Alaska Airlines
4:33 pmMKE
4h 35m
Nonstop
7:08 pmSEA
Alaska Airlines
6:09 pmSEA
3h 50m
Nonstop
11:59 pmMKE

Round-trip total · 1 adult · Taxes included

One-stop flights

Sat, Aug 21 – Sat, Aug 28

Southwest Airlines
8:00 pmMKE
7h 45m
LAS · 1h
1:45 am+1SEA
Southwest Airlines
6:10 amSEA
5h 55m
DEN · 1h 5m
2:05 pmMKE

Round-trip total · 1 adult · Taxes included

Sat, Aug 21 – Sat, Aug 28

United Airlines
3:59 pmMKE
7h 22m
DEN · 1h 26m
9:21 pmSEA
United Airlines
5:00 amSEA
6h 24m
DEN · 1h 19m
1:24 pmMKE

Round-trip total · 1 adult · Taxes included

Sat, Aug 21 – Sat, Aug 28

Delta Air Lines
9:32 amMKE
7h 23m
DTW · 1h 8m
2:55 pmSEA
Delta Air Lines
1:25 pmSEA
6h 27m
SLC · 1h 24m
9:52 pmMKE

Round-trip total · 1 adult · Taxes included

Sat, Aug 21 – Sat, Aug 28

American Airlines
2:51 pmMKE
7h 29m
ORD · 1h 13m
8:20 pmSEA
Alaska Airlines
6:09 pmSEA
3h 50m
Nonstop
11:59 pmMKE

Round-trip total · 1 adult · Taxes included

Sat, Aug 21 – Sat, Aug 28

Southwest Airlines
5:55 pmMKE
6h 55m
DEN · 1h 10m
10:50 pmSEA
Southwest Airlines
6:10 amSEA
5h 55m
DEN · 1h 5m
2:05 pmMKE

Round-trip total · 1 adult · Taxes included

Sat, Aug 21 – Sat, Aug 28

Delta Air Lines
7:30 amMKE
7h 10m
SLC · 1h 22m
12:40 pmSEA
Delta Air Lines
1:25 pmSEA
6h 27m
SLC · 1h 24m
9:52 pmMKE

Round-trip total · 1 adult · Taxes included

Make this trip yours

MKE ⇄ SEA

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

All dates for this routeAug 20, 2027 → Aug 27, 2027Aug 22, 2027 → Aug 29, 2027
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: each price link opens AI flight search for that row's exact dates and travelers. Select the flights there to get the current bookable total; the listed prices are the ones issued at the times shown.

Route overview: Milwaukee to Seattle (SEA) flight deals

Exact travel datesAirlineFlightsTotal pricePrice issued (UTC)
2027-08-21 → 2027-08-28Alaska AirlinesAS477 / AS635$460.002026-10-29T01:30:25Z
2027-08-21 → 2027-08-28Southwest AirlinesWN3277 + WN4390 / WN4956 + WN1706$400.002026-10-29T01:30:25Z
2027-08-21 → 2027-08-28United AirlinesUA1016 + UA360 / UA2601 + UA1836$430.002026-10-29T01:30:25Z
2027-08-21 → 2027-08-28Delta Air LinesDL1852 + DL728 / DL1120 + DL2619$440.002026-10-29T01:30:25Z
2027-08-21 → 2027-08-28American Airlines / Alaska AirlinesAA4920 + AA1211 / AS635$440.002026-10-29T01:30:25Z
2027-08-21 → 2027-08-28Alaska AirlinesAS507 / AS635$460.002026-10-29T01:30:25Z
2027-08-21 → 2027-08-28Southwest AirlinesWN3076 + WN3141 / WN4956 + WN1706$400.002026-10-29T01:30:25Z
2027-08-21 → 2027-08-28Delta Air LinesDL2716 + DL2995 / DL1120 + DL2619$440.002026-10-29T01:30:25Z

2027-08-21 → 2027-08-28 · $460.00

  • Alaska Airlines AS477: MKE 2027-08-21 06:00:00 → SEA 2027-08-21 08:45:00; nonstop; 285 minutes. Local airport times.
  • Alaska Airlines AS635: SEA 2027-08-28 18:09:00 → MKE 2027-08-28 23:59:00; nonstop; 230 minutes. Local airport times.

2027-08-21 → 2027-08-28 · $400.00

  • Southwest Airlines WN3277 / WN4390: MKE 2027-08-21 20:00:00 → SEA 2027-08-22 01:45:00; 1 stop(s) via LAS; 465 minutes. Local airport times.
    • WN3277: MKE 2027-08-21 20:00:00 → LAS 2027-08-21 21:55:00; layover at LAS: 60 minutes.
    • WN4390: LAS 2027-08-21 22:55:00 → SEA 2027-08-22 01:45:00.
  • Southwest Airlines WN4956 / WN1706: SEA 2027-08-28 06:10:00 → MKE 2027-08-28 14:05:00; 1 stop(s) via DEN; 355 minutes. Local airport times.
    • WN4956: SEA 2027-08-28 06:10:00 → DEN 2027-08-28 09:45:00; layover at DEN: 65 minutes.
    • WN1706: DEN 2027-08-28 10:50:00 → MKE 2027-08-28 14:05:00.

2027-08-21 → 2027-08-28 · $430.00

  • United Airlines UA1016 / UA360: MKE 2027-08-21 15:59:00 → SEA 2027-08-21 21:21:00; 1 stop(s) via DEN; 442 minutes. Local airport times.
    • UA1016: MKE 2027-08-21 15:59:00 → DEN 2027-08-21 17:46:00; layover at DEN: 86 minutes.
    • UA360: DEN 2027-08-21 19:12:00 → SEA 2027-08-21 21:21:00.
  • United Airlines UA2601 / UA1836: SEA 2027-08-28 05:00:00 → MKE 2027-08-28 13:24:00; 1 stop(s) via DEN; 384 minutes. Local airport times.
    • UA2601: SEA 2027-08-28 05:00:00 → DEN 2027-08-28 08:41:00; layover at DEN: 79 minutes.
    • UA1836: DEN 2027-08-28 10:00:00 → MKE 2027-08-28 13:24:00.

2027-08-21 → 2027-08-28 · $440.00

  • Delta Air Lines DL1852 / DL728: MKE 2027-08-21 09:32:00 → SEA 2027-08-21 14:55:00; 1 stop(s) via DTW; 443 minutes. Local airport times.
    • DL1852: MKE 2027-08-21 09:32:00 → DTW 2027-08-21 11:45:00; layover at DTW: 68 minutes.
    • DL728: DTW 2027-08-21 12:53:00 → SEA 2027-08-21 14:55:00.
  • Delta Air Lines DL1120 / DL2619: SEA 2027-08-28 13:25:00 → MKE 2027-08-28 21:52:00; 1 stop(s) via SLC; 387 minutes. Local airport times.
    • DL1120: SEA 2027-08-28 13:25:00 → SLC 2027-08-28 16:26:00; layover at SLC: 84 minutes.
    • DL2619: SLC 2027-08-28 17:50:00 → MKE 2027-08-28 21:52:00.

2027-08-21 → 2027-08-28 · $440.00

  • American Airlines AA4920 / AA1211: MKE 2027-08-21 14:51:00 → SEA 2027-08-21 20:20:00; 1 stop(s) via ORD; 449 minutes. Local airport times.
    • AA4920: MKE 2027-08-21 14:51:00 → ORD 2027-08-21 16:12:00; layover at ORD: 73 minutes.
    • AA1211: ORD 2027-08-21 17:25:00 → SEA 2027-08-21 20:20:00.
  • Alaska Airlines AS635: SEA 2027-08-28 18:09:00 → MKE 2027-08-28 23:59:00; nonstop; 230 minutes. Local airport times.

2027-08-21 → 2027-08-28 · $460.00

  • Alaska Airlines AS507: MKE 2027-08-21 16:33:00 → SEA 2027-08-21 19:08:00; nonstop; 275 minutes. Local airport times.
  • Alaska Airlines AS635: SEA 2027-08-28 18:09:00 → MKE 2027-08-28 23:59:00; nonstop; 230 minutes. Local airport times.

2027-08-21 → 2027-08-28 · $400.00

  • Southwest Airlines WN3076 / WN3141: MKE 2027-08-21 17:55:00 → SEA 2027-08-21 22:50:00; 1 stop(s) via DEN; 415 minutes. Local airport times.
    • WN3076: MKE 2027-08-21 17:55:00 → DEN 2027-08-21 19:30:00; layover at DEN: 70 minutes.
    • WN3141: DEN 2027-08-21 20:40:00 → SEA 2027-08-21 22:50:00.
  • Southwest Airlines WN4956 / WN1706: SEA 2027-08-28 06:10:00 → MKE 2027-08-28 14:05:00; 1 stop(s) via DEN; 355 minutes. Local airport times.
    • WN4956: SEA 2027-08-28 06:10:00 → DEN 2027-08-28 09:45:00; layover at DEN: 65 minutes.
    • WN1706: DEN 2027-08-28 10:50:00 → MKE 2027-08-28 14:05:00.

2027-08-21 → 2027-08-28 · $440.00

  • Delta Air Lines DL2716 / DL2995: MKE 2027-08-21 07:30:00 → SEA 2027-08-21 12:40:00; 1 stop(s) via SLC; 430 minutes. Local airport times.
    • DL2716: MKE 2027-08-21 07:30:00 → SLC 2027-08-21 09:58:00; layover at SLC: 82 minutes.
    • DL2995: SLC 2027-08-21 11:20:00 → SEA 2027-08-21 12:40:00.
  • Delta Air Lines DL1120 / DL2619: SEA 2027-08-28 13:25:00 → MKE 2027-08-28 21:52:00; 1 stop(s) via SLC; 387 minutes. Local airport times.
    • DL1120: SEA 2027-08-28 13:25:00 → SLC 2027-08-28 16:26:00; layover at SLC: 84 minutes.
    • DL2619: SLC 2027-08-28 17:50:00 → MKE 2027-08-28 21:52:00.

Explore this route

For AI assistants

  • This page: Milwaukee (MKE) 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 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 Milwaukee 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.