Your next trip, last seen at €115
Lowest observedUnited Airlines · 1 stop · One wayWhen to fly
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The lowest fare we observed for each month. Open a month to see its days, then pick your outbound and return. A day with no price is one we will search for you.
One-way fare
- Lowest observed
- €115, departing 5 Dec 2026 (Last checked: 23 Oct 2026)One-way fare · Priced departure days checked in the last 14 days: 87Check live prices for this route
- Airlines seen
- Porter Airlines Canada, United Airlines
- Typical journey time
- 4h 10m
- Non-stop
- Yes
About this route
Explore the fares we observed from Austin to Harlingen. Prices move often, so pick your dates to see the latest options.
- Route distance
- 453 km
- Typical journey time
- 4h 10m
Route-level information; individual journeys vary.
Published schedules report non-stop service with Southwest Airlines. Check current timetables.
A clearer picture of your fare
Airport to city: straight-line distance
- Austin Bergstrom International Airport (AUS) → Austin, city gazetteer reference point (30.2672, -97.7431): ≈ 11 km.
Approximate distances calculated from coordinates, not road distances or travel times. These airports serve the city; they are not confirmed endpoints of an offer.
Lowest fare by departure month
Cheapest month from Austin to Harlingen: December 2026, from €115 (checked 23 Oct 2026).
| Month | Lowest fare | Priced days |
|---|---|---|
| October 2026 | €198 | 3 |
| November 2026 | €146 | 30 |
| December 2026 | €115 | 31 |
| January 2027 | €158 | 23 |
Lowest fare by day of the week
Cheapest day of the week from Austin to Harlingen: Saturday, from €115 (checked 23 Oct 2026).
| Day | Lowest fare | Priced days |
|---|---|---|
| Monday | €158 | 12 |
| Tuesday | €146 | 12 |
| Wednesday | €158 | 12 |
| Thursday | €158 | 13 |
| Friday | €158 | 13 |
| Saturday | €115 | 13 |
| Sunday | €158 | 12 |
One-way fares checked in the last 14 days. Each figure is the lowest priced departure day we saw, not a guaranteed fare.
Lowest fare by days before departure
Lowest fare from Austin to Harlingen by days until departure (31 to 60 days): €115 (checked 23 Oct 2026).
| Days before departure | Lowest fare | Priced days |
|---|---|---|
| 0 to 7 days | €198 | 8 |
| 8 to 30 days | €146 | 23 |
| 31 to 60 days | €115 | 30 |
| 61 days or more | €158 | 26 |
One-way fares checked in the last 14 days. Each figure is the lowest stored fare for that distance to departure, not a price forecast.
Fares for different departure dates, checked now; not a guide to when to book.
Frequently asked
How much is a flight from Austin to Harlingen?
The lowest fare Routavio has observed is €115, found on 23 Oct 2026. Prices move, so read it as a floor rather than a quote.
When is the cheapest month to fly from Austin to Harlingen?
Cheapest month from Austin to Harlingen: December 2026, from €115 (checked 23 Oct 2026).
Are there direct flights from Austin to Harlingen?
Yes. Published schedules report non-stop flights on this route with Southwest Airlines.
Which airlines fly from Austin to Harlingen?
Routavio has seen these carriers on the route: Porter Airlines Canada, United Airlines.
How long does the flight from Austin to Harlingen take?
Across the 91 fares Routavio observed, the average journey time is 4h 30m, including any stops. Individual departures vary; the fastest observed flight is listed in the route facts above.
Which day of the week is cheapest from Austin to Harlingen?
Cheapest day of the week from Austin to Harlingen: Saturday, from €115 (checked 23 Oct 2026).
How observed prices work, what "No data" means and what a fare includes: Read the flight price guide
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Recently observed fares. Prices may change.
Last checked: 23 Oct 2026