Flights Boise → Austin
As of June 2026, economy flights from Boise to Austin have a typical range USD 403–677, median USD 528. Full range across all 191 offers: USD 287–812. We analyzed 191 offers from 8 airlines in a single price check.
Preview snapshot — prices change. Search for live results.
Data collected by LetsFG's multi-source price checks — every airline and the major booking sites checked for this route. How we collect data →
Why fly Boise → Austin?
This route offers a connection between Boise and Austin, catering to travelers seeking either budget-friendly options or more premium services. You can find a wide range of prices, making it adaptable to various travel needs.
Best for: budget-conscious travelers · travelers prioritizing flexibility
Booking tips: To secure a better deal, aim to book around the p25 price of USD 453, as prices can rise significantly towards the median of USD 528.4 and beyond.
Flight prices for this route appear to be within a moderate range for a transcontinental journey of this distance.
AI-generated summary from price distribution data · gemini-2.5-flash-lite
Best offers by airline: Boise → Austin
Based on 191 offers · June 2026. Prices and availability change — run a live search to confirm.
Bag & seat fees: Boise → Austin
Add-on pricing from the cheapest available offer per airline · June 2026 · USD
| Airline | Carry-on | Checked bag | Seat selection |
|---|---|---|---|
| Frontier Airlines | — | — | — |
| United Airlines | Included | USD 35 | — |
| Southwest Airlines | Included | Included | — |
| Alaska Airlines | Included | USD 35 | — |
| Delta Air Lines | Included | USD 35 | — |
Fees are estimates from the prices we checked and may not reflect your specific itinerary, booking class, or payment method. Run a live search for exact pricing.
How much do flights from Boise to Austin cost?
Based on 191 offers · June 2026
Boise to Austin flights ranged from USD 287 to USD 812 across 191 offers analyzed in June 2026. The chart below shows how prices distributed across all 191 offers.
These 191 offers (June 2026) span multiple departure dates and booking windows — your travel dates may fall anywhere in this distribution. Only a live search shows where your specific trip lands.
50% of offers priced between USD 453 and USD 618
What hidden fees do Boise to Austin flights charge?
Ancillary fees — bags, seat selection, and payment surcharges — can add 10–25% to the base fare on Boise to Austin routes. The breakdown below is based on 191 offers analyzed in June 2026.
| Carrier | Avg fee (USD) | % of base fare |
|---|---|---|
| F9 | 383 | 106% |
| UA | 45 | 11% |
| WN | 0 | 0% |
| AS | 63 | 10% |
| DL | 45 | 11% |
Frontier Airlines: base ~USD -90 + fees USD 383 = ~USD 293 total. United Airlines: base ~USD 358 + fees USD 45 = ~USD 403 total.
Frontier Airlines's USD 383 ancillary fees narrow the gap with United Airlines's lower-fee model — the USD 448 base difference shrinks to USD 110 after fees. Always compare total cost, not just the advertised base fare.
Estimates based on median total minus average ancillary fee. Actual base fares vary by itinerary.Fee levels vary significantly across carriers on this route — some carriers charge 50%+ above the base fare in ancillary fees.
Run your search to see itemized fees for your itineraryWhich airline is cheapest from Boise to Austin?
8 airlines flew Boise to Austin in this dataset. Knowing the airline isn't enough — the typical fare range below shows how far prices swing on each one. Median and range include all fees we recorded.
| Airline | Offers | Typical range (USD) | Median (USD) | Fees (USD) |
|---|---|---|---|---|
 Frontier Airlines | 3 | — | 293 | 383 (131%) |
 United Airlines | 7 | — | 403 | 45 (11%) |
 Delta Air Lines | 1 | — | 403 | 45 (11%) |
 Frontier|Alaska Airlines | 10 | — | 417 | n/a |
 Alaska Airlines|Frontier | 10 | — | 424 | n/a |
 Southwest Airlines | 10 | — | 425 | 0 (0%) |
 Hawaiian Airlines | 100 | — | 531 | n/a |
 Alaska Airlines | 50 | — | 644 | 63 (10%) |
Where do the best Boise → Austin prices come from?
We checked direct airlines, travel agencies, and meta-search for this route. On this route the lowest median came from direct airline sources, but the cheapest channel shifts by route and date — which is exactly why a live search across all of them wins.
We compare every airline and the major booking sites but never disclose which — that's our edge. Prices are the ones we observed and aren't official data from any platform. Run a live search and we bring you the cheapest, wherever it is.
Key facts: Boise to Austin flights
- Full-service carriers on Boise–Austin cost 1.3x more than budget airlines (USD 495 vs USD 390 median; overall median USD 528).
- F9 charges 8.5x more in ancillary fees than DL — USD 383 vs USD 45 avg per booking.
- The same route priced USD 351 apart depending on where it was booked — the lowest median was USD 293. We search every airline and the major booking sites at once so you always see that lowest price.
Frequently asked questions
- How much does a flight from Boise to Austin cost?
- Based on 191 offers analyzed, Boise to Austin flights range from USD 287 to USD 812, with a median price of USD 528. Search for your specific dates →
- What hidden fees should I expect on Boise to Austin flights?
- On average, ancillary fees (bags, seat selection) add USD 61 to the base fare on Boise to Austin flights. See itemized fees for your itinerary →
- Which airline is cheapest on Boise to Austin including all fees?
- Frontier Airlines has the lowest median fare on Boise to Austin at USD 293 (median across 3 offers in our snapshot). Check which airline wins on your dates →
- Which booking site has the cheapest Boise–Austin flights?
- It depends on your dates — no single site is always cheapest. We search every airline and the major booking sites at once (travel agencies and meta-search included) and surface whichever is lowest; the best median in this snapshot was USD 293. Run a live search and we'll find the cheapest for you →
- Why do prices vary so much on Boise to Austin routes?
- Boise to Austin has 8 airlines competing, creating a price range from USD 287 to USD 812 across 191 offers. Prices on this route change with booking timing, advance purchase, and ancillary add-ons. Find where your trip lands in the distribution →
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