Phoenix to St. Louis nonstop
Yes: Southwest, American and Frontier fly direct from Phoenix (PHX) to St. Louis (STL) about 6 times a day, year-round.
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Phoenix to St. Louis in numbers
Measured from US DOT filings, not estimated from distance.
- Distance and flight time
- 1,262 miles nonstop, about 3 hr 10 min gate to gate. Flight time is an estimate from the great-circle distance; the filings carry distance, not scheduled elapsed time.
- Seasonality
- Flew every month of the last year: busiest in March 2026 (53 flights a week), quietest in September 2025 (37 flights a week).
- Sep 2025: 37 flights a week
- Oct 2025: 45 flights a week
- Nov 2025: 44 flights a week
- Dec 2025: 47 flights a week
- Jan 2026: 45 flights a week
- Feb 2026: 48 flights a week
- Mar 2026: 53 flights a week
- Apr 2026: 48 flights a week
- May 2026: 46 flights a week
- Jun 2026: 39 flights a week
- Jul 2026: 45 flights a week
- Aug 2026: 39 flights a week
Flights a week by month, Sep 2025 to Aug 2026, from US DOT on-time filings. - Who operates the flights
- Southwest 72%, American 25%, Frontier 2% of departures, counted across the August 2026 and February 2026 US DOT on-time filings.
- Fares
- Half of the 3,260 tickets in the US DOT fare survey for Q2 2025 sold between $175 and $325 one way, median $225. The survey runs a couple of quarters behind, so read it as the shape of the route's pricing rather than today's quote.
- Jul to Sep (Q3 2024): median $150 one way, middle half $100 to $250, 3,580 tickets
- Oct to Dec (Q4 2024): median $225 one way, middle half $175 to $325, 3,691 tickets
- Jan to Mar (Q1 2025): median $250 one way, middle half $200 to $375, 3,263 tickets
- Apr to Jun (Q2 2025): median $225 one way, middle half $175 to $325, 3,260 tickets
Jul to Sep trips were the cheapest (median $150 one way) and Jan to Mar trips cost the most (median $250), in the DOT ticket survey for Q3 2024 to Q2 2025. Bars show the middle half of one-way fares; the mark is the median.
Flying the other way? St. Louis to Phoenix nonstop.
Also nonstop from Phoenix (PHX)
Busiest other routes out of the same airport
- Denver (DEN) about 22 times a day
- Los Angeles (LAX) about 19 times a day
- Seattle (SEA) about 18 times a day
- San Diego (SAN) about 17 times a day
- Las Vegas (LAS) about 15 times a day
- Chicago (ORD) about 15 times a day
- Salt Lake City (SLC) about 14 times a day
- Dallas/Fort Worth (DFW) about 13 times a day
Staying in St. Louis?
Sort out where you'll sleep and what you'll do once you land.
Exploring St. Louis on foot? Take the free GPS audio walking tour
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