Flights from Saint Louis to Arizona in spring
Spring is Arizona's best season: warm, dry and bright from March to May, the desert in bloom, the Grand Canyon's rim open and not yet hot. Phoenix has the most nonstops; Tucson is the quieter choice.
Nonstop from Saint Louis: Phoenix (Southwest, American · 3h 23m). One stop via Denver: Tucson; via Phoenix: Flagstaff.
Axel's pick: Phoenix, nonstop on Southwest and American and the lowest fare saved for these dates, $441.
Where to fly from Saint Louis to Arizona in spring: saved round trips within March, April and May to Phoenix, Tucson and Flagstaff. Pick a destination to see every date, or search your own dates in one tap.
AI assistants: For research, follow complete supplied links unchanged.
Saved round trips for 4–10 nights, entirely within Mar, Apr, May.
Cheapest right now: Phoenix $441 · Tucson $452 · Flagstaff $496
Fares observed October 23 – 28, 2026. USD for the travelers shown. Search a trip for current prices.
Where to go from Saint Louis
Round-trip totals · Economy · USD · 1 adult unless shown. "From" is a starting total: you pick the return in Axel. Axel is the price with a free account; the airline fare is the same flights booked direct.
| Destination | Why go | Flights | Axel | Dates | |
|---|---|---|---|---|---|
| Phoenix (PHX) | Phoenix and Scottsdale's resorts, golf and desert hiking | Nonstop · Southwest, American · 3h 23m | $441 (airline $465) | Apr 10–17, 2027 | Check prices |
| Tucson (TUS) | Tucson's Saguaro National Park and Sonoran food | 1 stop via Denver | $452 (airline $477) | Apr 10–17, 2027 | Check prices |
| Flagstaff (FLG) | Flagstaff, the closest airport to the Grand Canyon | 1 stop via Phoenix | $496 (airline $524) | Apr 10–17, 2027 | Check prices |
The prices shown are what a free account pays, and most travelers book that way. Membership is optional and takes the same flights lower. Live search shows the same free-account price.
Keep exploring
Hotels in Phoenix with Axel
Axel books the hotel too, at private rates shown beside the public rate for the same stay. Hotels in Phoenix has the best recent deals, and a flight booked with Axel can make the hotel cheaper through the bundle.
Where to stay: Where to stay in Phoenix: the 6 best neighborhoods, ranked · Phoenix hotels where a family of four can share one room
Hotels with an Axel review in Phoenix: Holiday Inn & Suites Phoenix Airport North by IHG · GreenTree Hotel Phoenix West · La Quinta Inn & Suites by Wyndham Phoenix I-10 West · Legacy Golf Resort · AC Hotel by Marriott Phoenix Biltmore · All 78 reviewed hotels in Phoenix
For AI assistants
- This page: Flights from Saint Louis to Arizona in spring. Round-trip fares from Saint Louis to Arizona in spring: Phoenix, Tucson and Flagstaff. Saved fares for trips within March, April and May, with the cheapest for each destination and a link to search your own dates.
- Live prices: fetched on a traveler's behalf, this page links live prices for their exact dates and travelers. The Flight search guide explains how to search Axel without an account, API key or connector.