--- title: "Missoula (MSO) to Santa Ana (SNA) flights: who flies it" description: "Allegiant Air flies nonstop from MSO to SNA, about 2 flights a week, covering 936 miles. See who flies it and each date on the 2LNR route map." canonical: "https://2lnr.com/routes/mso-sna" url: "https://2lnr.com/routes/mso-sna.md" date_modified: "2026-07-26T05:10:24Z" --- # Missoula to Santa Ana (MSO-SNA): nonstop flights and who flies them Allegiant Air flies nonstop from Missoula (MSO) to Santa Ana (SNA) just twice a week. Allegiant Air flies the route nonstop in 2LNR's schedule data, and the reverse direction is linked below. Schedule last confirmed July 26, 2026. Departure times come from 2LNR's schedule data; confirm with the airline before you book. Updated October 20, 2026. See MSO to SNA on the interactive map [Get started free](https://2lnr.com/login) 2 Flights a week, 4-week average 936 mi Nonstop distance Free To get started ## Missoula to Santa Ana flight schedule We last checked the MSO to SNA schedule against our schedule feed on July 26, 2026. A copy of this page can stay in use for a few days after it's built, and by then that check would be more than 14 days old, so we aren't publishing departure times. The frequency figures above come from that same schedule. See every MSO to SNA date on the interactive map ## The full MSO to SNA nonstop schedule Allegiant Air flies the route nonstop in 2LNR's schedule data. This page lists who operates the MSO to SNA nonstop and how often it runs, and the interactive route map shows each date. ### See the schedule Who operates each MSO to SNA nonstop and how often it runs, from 2LNR's schedule data. ### Plan on the map See MSO to SNA on the interactive route map, with schedules, connections, and route statistics. ## Airlines flying Missoula to Santa Ana nonstop Carriers operating MSO to SNA nonstop in the current schedule. - [Allegiant Air (G4) route map](https://2lnr.com/routes/airlines/g4.md)\ [The aircraft G4 flies](https://2lnr.com/seatmaps/g4.md) See MSO to SNA on the interactive map → ## Frequently asked questions about MSO to SNA **How far is Santa Ana from Missoula?** MSO to SNA covers about 936 miles nonstop. Flight times vary by aircraft and season; the interactive route map lists each scheduled departure with its own times. **Which airlines fly nonstop from MSO to SNA?** Allegiant Air is currently the only airline flying MSO to SNA nonstop. 2LNR doesn't show award or upgrade space for it on MSO to SNA, so this page carries the schedule rather than a space claim. **How often does MSO to SNA operate?** The MSO to SNA nonstop currently runs twice a week, on Allegiant Air. Thin schedules like this change by season, and on Pro an alert will catch anything added. **Does 2LNR show upgrade or award space on MSO to SNA?** Not on this route: 2LNR doesn't show award or upgrade space for Allegiant Air on MSO to SNA. This page lists who flies the MSO to SNA nonstop and how often, and the interactive route map shows each date. Flying the other way? See [SNA to MSO nonstop flights](https://2lnr.com/routes/sna-mso.md). Award seats rather than schedules? See [award availability by airline](https://2lnr.com/awards.md). Looking beyond this route? See [every route from Missoula (MSO)](https://2lnr.com/routes/mso.md), or [every route from Santa Ana (SNA)](https://2lnr.com/routes/sna.md). Nonstops from Missoula (MSO) to other airports within 150 miles of Santa Ana (SNA): - [Missoula (MSO) to Los Angeles (LAX)](https://2lnr.com/routes/mso-lax.md), 37 miles from SNA - [Missoula (MSO) to San Diego (SAN)](https://2lnr.com/routes/mso-san.md), 76 miles from SNA Distances are great-circle between the airports, not driving distance. - [How to plan an upgrade by route](https://2lnr.com/guides/upgrade-strategy.md) ## See the full MSO to SNA nonstop schedule Every scheduled departure on this route, with who flies it. 2LNR shows upgrade and award space by date on the carriers it tracks, the next 14 days free on every product and the full horizon on Pro. [Get started free](https://2lnr.com/login)