Alaska vs Frontier: Which Airline Is More On Time?
Alaska
33
routes won · leader
Frontier
7
routes won
vs4ties
- Alaska on time
- 78.0%
- Frontier on time
- 72.1%
- Alaska cancelled
- 1.5%
- Frontier cancelled
- 1.7%
On the 44 routes both fly · Jun 2025 to May 2026
On the 44 routes both airlines fly, Alaska was more on time on 33, Frontier on 7, and 4 were a tie. On those shared routes, Alaska flights arrived on time 78.0% of the time and Frontier flights 72.1%.
Alaska's biggest wins
Every shared route
Busiest first. Tap a route for every flight on it and the most on-time departure.
| Route | Alaska | Frontier | More on time |
|---|---|---|---|
| SEA → LAXSeattle to Los Angeles | 79.8%3,308 flights | 79.7%261 flights | Tie |
| LAX → SEALos Angeles to Seattle | 84.7%3,303 flights | 80.1%261 flights | Alaska |
| SEA → PHXSeattle to Phoenix | 77.9%2,930 flights | 71.4%191 flights | Alaska |
| PHX → SEAPhoenix to Seattle | 84.4%2,926 flights | 85.3%191 flights | Frontier |
| SEA → LASSeattle to Las Vegas | 76.2%2,670 flights | 67.8%237 flights | Alaska |
| LAS → SEALas Vegas to Seattle | 82.0%2,668 flights | 79.8%237 flights | Alaska |
| LAX → SFOLos Angeles to San Francisco | 70.1%2,305 flights | 53.7%387 flights | Alaska |
| SFO → LAXSan Francisco to Los Angeles | 74.8%2,305 flights | 67.5%387 flights | Alaska |
| SNA → SFOSanta Ana to San Francisco | 74.4%2,464 flights | 57.6%144 flights | Alaska |
| SAN → SFOSan Diego to San Francisco | 66.6%2,391 flights | 49.7%188 flights | Alaska |
| SFO → SNASan Francisco to Santa Ana | 79.6%2,435 flights | 67.9%142 flights | Alaska |
| SFO → SANSan Francisco to San Diego | 68.7%2,373 flights | 60.3%188 flights | Alaska |
| LAX → PDXLos Angeles to Portland | 89.6%1,952 flights | 81.9%219 flights | Alaska |
| PDX → LAXPortland to Los Angeles | 85.8%1,949 flights | 82.1%219 flights | Alaska |
| LAS → SANLas Vegas to San Diego | 68.1%1,638 flights | 66.2%403 flights | Alaska |
| SAN → LASSan Diego to Las Vegas | 70.5%1,635 flights | 63.3%403 flights | Alaska |
| SFO → LASSan Francisco to Las Vegas | 76.8%1,143 flights | 67.7%873 flights | Alaska |
| LAS → SFOLas Vegas to San Francisco | 68.5%1,143 flights | 65.8%866 flights | Alaska |
| SEA → DENSeattle to Denver | 73.9%1,572 flights | 74.1%412 flights | Tie |
| DEN → SEADenver to Seattle | 72.2%1,571 flights | 72.1%412 flights | Tie |
| SEA → SLCSeattle to Salt Lake City | 79.0%1,819 flights | 70.2%107 flights | Alaska |
| SLC → SEASalt Lake City to Seattle | 74.7%1,819 flights | 69.2%107 flights | Alaska |
| LAS → PDXLas Vegas to Portland | 82.9%1,524 flights | 75.9%168 flights | Alaska |
| PDX → LASPortland to Las Vegas | 83.1%1,522 flights | 71.6%165 flights | Alaska |
| LAX → LASLos Angeles to Las Vegas | 76.9%1,075 flights | 69.1%576 flights | Alaska |
| LAS → LAXLas Vegas to Los Angeles | 76.6%1,075 flights | 79.8%575 flights | Frontier |
| PDX → PHXPortland to Phoenix | 83.2%1,391 flights | 80.2%105 flights | Alaska |
| PHX → PDXPhoenix to Portland | 87.9%1,388 flights | 86.8%106 flights | Alaska |
| ONT → SEAOntario to Seattle | 81.6%1,265 flights | 83.6%171 flights | Frontier |
| SEA → ONTSeattle to Ontario | 75.7%1,265 flights | 75.7%171 flights | Tie |
| PHX → SANPhoenix to San Diego | 72.5%1,014 flights | 75.4%414 flights | Frontier |
| SAN → PHXSan Diego to Phoenix | 69.6%1,013 flights | 69.0%413 flights | Alaska |
| DEN → SANDenver to San Diego | 80.6%686 flights | 78.5%717 flights | Alaska |
| SAN → DENSan Diego to Denver | 81.6%685 flights | 79.4%718 flights | Alaska |
| PDX → ONTPortland to Ontario | 85.8%1,020 flights | 81.7%109 flights | Alaska |
| ONT → PDXOntario to Portland | 91.6%1,019 flights | 77.1%109 flights | Alaska |
| AUS → SANAustin to San Diego | 82.0%967 flights | 69.8%134 flights | Alaska |
| SAN → AUSSan Diego to Austin | 79.1%967 flights | 70.5%134 flights | Alaska |
| SAN → SLCSan Diego to Salt Lake City | 77.7%764 flights | 81.6%142 flights | Frontier |
| PDX → DENPortland to Denver | 75.1%566 flights | 73.7%338 flights | Alaska |
| SLC → SANSalt Lake City to San Diego | 84.4%762 flights | 83.5%142 flights | Alaska |
| DEN → PDXDenver to Portland | 75.1%565 flights | 77.5%337 flights | Frontier |
| PHX → SFOPhoenix to San Francisco | 69.8%126 flights | 71.2%254 flights | Frontier |
| SFO → PHXSan Francisco to Phoenix | 62.7%125 flights | 56.7%254 flights | Alaska |
Across their whole networks
Alaska is #4 on the airline on-time leaderboard (79.7% on time, 1.3% cancelled, 506,081 flights); Frontier is #7 (72.5% on time, 1.9% cancelled, 202,286 flights).
More matchups
Historical results, not a guarantee. Source: US DOT Bureau of Transportation Statistics marketing-carrier on-time reports, Jun 2025 to May 2026. Alaska includes Hawaiian and Horizon. ATIS Alerts is not affiliated with any airline.