United AirlinesDepart06:15
Fri, Nov 13STL → AMA
4h 12m · 1 stop
$346one way, per person
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- Cheapest fare
- $346
- Cheapest month
- November
- Direct flights
- Not recently
- Quickest trip
- 4h 12m
United Airlines · Fri, Nov 13
from $346
Usually 1+ stop
1,100 km
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Cheapest month to fly from St Louis to Amarillo
Lowest one-way fare per person in each month. Choose a month to see every date.
Cheapest dates in November 2026
The lowest fares we've seen for each day, cheapest first.
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About flights from St Louis to Amarillo
St Louis (STL) and Amarillo (AMA) are about 1,100 km apart. We haven't seen direct fares on this route recently, so expect at least one stop; the quickest journey we've seen takes about 4h 12m. Over the next few months, one-way fares start from $346, and November 2026 is currently the cheapest month to fly.
These prices come from searches travellers made in the last 48 hours, so they move quickly. If you see a good fare, it's worth booking soon. FlightsExp is free to use: you book directly with our travel partner.
Frequently asked questions
How much is a flight from St Louis to Amarillo?
The cheapest one-way fare we've seen recently is $346 with United Airlines, departing Friday, November 13, 2026.
What is the cheapest month to fly from St Louis to Amarillo?
November 2026 currently has the lowest fares, from $346 one way.
Are there direct flights from St Louis to Amarillo?
We haven't seen direct fares recently, so most journeys include at least one stop.
How long is the flight from St Louis to Amarillo?
The quickest journey we've seen takes about 4h 12m. St Louis and Amarillo are around 1,100 km apart.
Which airlines fly from St Louis to Amarillo?
Recent fares on this route were with United Airlines.
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