Flights Boston → Austin
As of October 2026, economy flights from Boston to Austin have a typical range USD 326–582, median USD 356. Full range across all 243 offers: USD 282–620. We found 13% of 243 offers from budget carriers (around USD 337) and 87% from full-service carriers (around USD 356).
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 →
Best offers by airline: Boston → Austin
Based on 243 offers · October 2026. Prices and availability change — run a live search to confirm.
Bag & seat fees: Boston → Austin
Add-on pricing from the cheapest available offer per airline · October 2026 · USD
| Airline | Carry-on | Checked bag | Seat selection |
|---|---|---|---|
| Frontier | — | — | — |
| Delta | Included | USD 35 | — |
| JetBlue | — | USD 90 | — |
| Southwest Airlines | Included | Included | — |
| United | Included | USD 35 | — |
| American Airlines | Included | USD 35 | — |
| JetBlue | Included | — | — |
| Delta | — | USD 90 | — |
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 Boston to Austin cost?
Based on 243 offers · October 2026
Boston to Austin flights ranged from USD 282 to USD 620 across 243 offers analyzed in October 2026. Two fare clusters detected: budget fares around 367 and premium fares around 603 The chart below shows how prices distributed across all 243 offers.
These 243 offers (October 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 356 and USD 356
What hidden fees do Boston to Austin flights charge?
Ancillary fees — bags, seat selection, and payment surcharges — can add 10–25% to the base fare on Boston to Austin routes. The breakdown below is based on 243 offers analyzed in October 2026.
| Carrier | Avg fee (USD) | % of base fare |
|---|---|---|
| F9 | 12 | 4% |
| DL | 34 | 7% |
| JetBlue | 90 | 27% |
| WN | 8 | 2% |
| UA | 45 | 11% |
| AA | 45 | 13% |
| B6 | 10 | 2% |
| Delta | 90 | 22% |
JetBlue: base ~USD 247 + fees USD 90 = ~USD 337 total. Southwest Airlines: base ~USD 348 + fees USD 8 = ~USD 356 total.
JetBlue's USD 90 ancillary fees narrow the gap with Southwest Airlines's lower-fee model — the USD 101 base difference shrinks to USD 19 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 Boston to Austin?
9 airlines flew Boston to Austin in this dataset. The route shows a clear split between low-cost and full-service carriers. 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 | 1 | — | 282 | n/a |
 Frontier Airlines | 29 | — | 326 | 12 (4%) |
 JetBlue | 1 | — | 337 | 90 (27%) |
 Southwest Airlines | 167 | 352–362 | 356 | 8 (2%) |
 United Airlines | 7 | 356–509 | 356 | 45 (13%) |
 American Airlines | 2 | — | 356 | 45 (13%) |
 Delta Air Lines | 32 | 337–618 | 391 | 34 (9%) |
 Delta | 1 | — | 414 | 90 (22%) |
 B6 | 3 | 422–607 | 595 | 10 (2%) |
Where do the best Boston → Austin prices come from?
We checked direct airlines, travel agencies, and meta-search for this route. On this route the lowest median came from meta-search 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: Boston to Austin flights
- Full-service carriers on Boston–Austin cost 1.0x more than budget airlines (USD 379 vs USD 379 median; overall median USD 356).
- JetBlue charges 11.9x more in ancillary fees than WN — USD 90 vs USD 8 avg per booking.
- The same route priced USD 281 apart depending on where it was booked — the lowest median was USD 326. 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 Boston to Austin cost?
- Based on 243 offers analyzed, Boston to Austin flights range from USD 282 to USD 620, with a median price of USD 356. Search for your specific dates →
- What hidden fees should I expect on Boston to Austin flights?
- On average, ancillary fees (bags, seat selection) add USD 14 to the base fare on Boston to Austin flights. See itemized fees for your itinerary →
- Which airline is cheapest on Boston to Austin including all fees?
- Frontier has the lowest median fare on Boston to Austin at USD 282 (median across 1 offers in our snapshot). Check which airline wins on your dates →
- Which booking site has the cheapest Boston–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 326. Run a live search and we'll find the cheapest for you →
- Why do prices vary so much on Boston to Austin routes?
- Boston to Austin has 9 airlines competing, creating a price range from USD 282 to USD 620 across 243 offers. There are two distinct fare clusters on this route: budget options and premium fares. Find where your trip lands in the distribution →
9 airlines, two price clusters — find which fits your budget
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