Flights Austin → Philadelphia
As of September 2026, economy flights from Austin to Philadelphia have a typical range USD 305–750, median USD 386. Full range across all 278 offers: USD 162–2370. We analyzed 278 offers from 14 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 →
Best offers by airline: Austin → Philadelphia
Based on 278 offers · September 2026. Prices and availability change — run a live search to confirm.
Bag & seat fees: Austin → Philadelphia
Add-on pricing from the cheapest available offer per airline · September 2026 · USD
| Airline | Carry-on | Checked bag | Seat selection |
|---|---|---|---|
| Frontier | — | — | — |
| JetBlue | Included | — | — |
| Southwest Airlines | Included | Included | — |
| American Airlines | Included | USD 35 | — |
| United Airlines | Included | USD 35 | — |
| Alaska Airlines | Included | USD 35 | — |
| Qantas | Included | USD 35 | — |
| Air New Zealand | Included | USD 30 | — |
| Delta | 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 Austin to Philadelphia cost?
Based on 278 offers · September 2026
Austin to Philadelphia flights ranged from USD 162 to USD 2370 across 278 offers analyzed in September 2026. The chart below shows how prices distributed across all 278 offers.
These 278 offers (September 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 341 and USD 545
What hidden fees do Austin to Philadelphia flights charge?
Ancillary fees — bags, seat selection, and payment surcharges — can add 10–25% to the base fare on Austin to Philadelphia routes. The breakdown below is based on 278 offers analyzed in September 2026.
| Carrier | Avg fee (USD) | % of base fare |
|---|---|---|
| F9 | 10 | 3% |
| B6 | 12 | 3% |
| WN | 0 | 0% |
| AA | 46 | 10% |
| UA | 45 | 9% |
| AS | 45 | 9% |
| QF | 50 | 12% |
| NZ | 42 | 9% |
| DL | 45 | 4% |
Qantas: base ~USD 336 + fees USD 50 = ~USD 386 total. B6: base ~USD 392 + fees USD 12 = ~USD 404 total.
Qantas's USD 50 ancillary fees narrow the gap with B6's lower-fee model — the USD 56 base difference shrinks to USD 18 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 Austin to Philadelphia?
14 airlines flew Austin to Philadelphia 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.
Even on the cheapest airline (Frontier), fares ranged USD 175–189 in this snapshot. Your exact price depends on your dates and how far ahead you book — run a live search to see your number →
| Airline | Offers | Typical range (USD) | Median (USD) | Fees (USD) |
|---|---|---|---|---|
 Frontier | 2 | 175–189 | 182 | n/a |
 JetBlue | 1 | — | 291 | n/a |
 Southwest | 21 | 292–369 | 336 | n/a |
 Southwest Airlines | 44 | 291–475 | 341 | 0 (0%) |
 Alaska | 1 | — | 353 | n/a |
 Frontier Airlines | 12 | 175–500 | 363 | 10 (3%) |
 American | 1 | — | 363 | n/a |
 Qantas | 3 | 386–470 | 386 | 50 (13%) |
 American Airlines | 76 | 352–627 | 389 | 46 (12%) |
 B6 | 43 | 318–574 | 404 | 12 (3%) |
 United Airlines | 32 | 326–721 | 413 | 45 (11%) |
 Air New Zealand | 2 | 434–457 | 446 | 42 (9%) |
 Alaska Airlines | 5 | 397–607 | 497 | 45 (9%) |
 Delta Air Lines | 35 | 573–2093 | 876 | 45 (5%) |
Where do the best Austin → Philadelphia 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: Austin to Philadelphia flights
- Full-service carriers on Austin–Philadelphia cost 1.5x more than budget airlines (USD 465 vs USD 319 median; overall median USD 386).
- QF charges 5.0x more in ancillary fees than F9 — USD 50 vs USD 10 avg per booking.
- The same route priced USD 301 apart depending on where it was booked — the lowest median was USD 273. 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 Austin to Philadelphia cost?
- Based on 278 offers analyzed, Austin to Philadelphia flights range from USD 162 to USD 2370, with a median price of USD 386. Search for your specific dates →
- What hidden fees should I expect on Austin to Philadelphia flights?
- On average, ancillary fees (bags, seat selection) add USD 30 to the base fare on Austin to Philadelphia flights. See itemized fees for your itinerary →
- Which airline is cheapest on Austin to Philadelphia including all fees?
- Frontier has the lowest median fare on Austin to Philadelphia at USD 182 (median across 2 offers in our snapshot). Check which airline wins on your dates →
- Which booking site has the cheapest Austin–Philadelphia 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 273. Run a live search and we'll find the cheapest for you →
- Why do prices vary so much on Austin to Philadelphia routes?
- Austin to Philadelphia has 14 airlines competing, creating a price range from USD 162 to USD 2370 across 278 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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