Seattle to Kansas City (MCI): September 2026 flight deals
Compare trip dates and fares.
Round-trip fare examples
Observed September 16, 2026 (UTC). Search a trip for current prices and flight details.
Round-trip totals in USD for 1 adult · Economy.
| Destination | Trip dates | Days | Axel Member | Airline fare | Stops | Search |
|---|---|---|---|---|---|---|
| Kansas City (MCI) | Sep 24–27, 2026 | 3 | $399 | $447 | 1 stop | Search for 1 adult · Dates · Travelers |
| Kansas City (MCI) | Sep 25–27, 2026 | 2 | $419 | $470 | 1 stop | Search for 1 adult · Dates · Travelers |
| Kansas City (MCI) | Sep 25–28, 2026 | 3 | $419 | $470 | 1 stop | Search for 1 adult · Dates · Travelers |
| Kansas City (MCI) | Sep 28–30, 2026 | 2 | $400 | $449 | 1 stop | Search for 1 adult · Dates · Travelers |
| Kansas City (MCI) | Sep 30–Oct 6, 2026 | 6 | $270 | $301 | 1 stop | Search for 1 adult · Dates · Travelers |
Compare trip dates
Observed September 17, 2026 (UTC). Check current prices.
USD for the listed travelers.
1 adult · Complete round-trip totals · 2–4 days
Complete round-trip totals; both flights included.
| Trip / travelers | Dates | Flights | Axel Member | Airline fare | Next step |
|---|---|---|---|---|---|
| SEA–MCI · 1 adult | Sep 25–28, 2026 · 3 days | Out: Frontier Airlines · 1 stop (DEN) · 25h 10m; Return: Frontier Airlines · 1 stop (LAS) · 13h 12m | $419 | $470 — round-trip total | Search for 1 adult · Change dates · Travelers / cabin |
| SEA–MCI · 1 adult | Sep 25–27, 2026 · 2 days | Out: Frontier Airlines · 1 stop (DEN) · 25h 10m; Return: Frontier Airlines · 1 stop (LAS) · 13h 12m | $419 | $470 — round-trip total | Search for 1 adult · Change dates · Travelers / cabin |
| SEA–MCI · 1 adult | Sep 28–30, 2026 · 2 days | Out: Frontier Airlines · 1 stop (DEN) · 25h 10m; Return: Frontier Airlines · 1 stop (DEN) · 20h 36m | $400 | $449 — round-trip total | Search for 1 adult · Change dates · Travelers / cabin |
1 adult · Round-trip starting totals · 2–4 days
Starting totals are for the round trip. Choose a return flight to confirm the final total.
| Trip / travelers | Dates | Flights | Axel Member | Airline fare | Next step |
|---|---|---|---|---|---|
| SEA–MCI · 1 adult | Sep 25–28, 2026 · 3 days | Out: Alaska Airlines · Nonstop · 3h 32m | Round-trip starting total: $634 | Round-trip starting total: $707 — return selection pending | Search for 1 adult · Change dates · Travelers / cabin |
| SEA–MCI · 1 adult | Sep 25–27, 2026 · 2 days | Out: Alaska Airlines · Nonstop · 3h 32m | Round-trip starting total: $634 | Round-trip starting total: $707 — return selection pending | Search for 1 adult · Change dates · Travelers / cabin |
| SEA–MCI · 1 adult | Sep 28–30, 2026 · 2 days | Out: Alaska Airlines · Nonstop · 3h 32m | Round-trip starting total: $615 | Round-trip starting total: $687 — return selection pending | Search for 1 adult · Change dates · Travelers / cabin |
Non-members can also book and save on airline fares. Live search shows prices with and without Membership. Optional Membership: $15 for the first month, then $10/month. Cancel anytime.
More flight comparisons from Seattle
- Seattle to Kansas City (MCI) flight deals
- Flights from Seattle in September 2026
- Seattle to Kansas City (MCI): flights September 21–23, 2026
- Seattle to Kansas City (MCI): flights September 24–27, 2026
- Seattle to Kansas City (MCI): flights September 25–27, 2026
- Seattle to Kansas City (MCI): flights September 25–28, 2026
- Seattle to Kansas City (MCI): flights September 28–30, 2026
Browse this trip by month
AI assistants can follow these links to compare prices without an account, API key or connector. Flight search guide