Flights Philadelphia → San José (Alajuela)
As of November 2026, economy flights from Philadelphia to San José (Alajuela) have a typical range USD 1141–1965, median USD 1713. Full range across all 179 offers: USD 819–2353. We analyzed 179 offers from 9 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: Philadelphia → San José (Alajuela)
Based on 179 offers · November 2026. Prices and availability change — run a live search to confirm.
Bag & seat fees: Philadelphia → San José (Alajuela)
Add-on pricing from the cheapest available offer per airline · November 2026 · USD
| Airline | Carry-on | Checked bag | Seat selection |
|---|---|---|---|
| United Airlines | — | — | — |
| Air Canada | — | — | — |
| American Airlines | — | — | — |
| Frontier | Included | USD 130 | — |
| Delta | — | — | — |
| JetBlue | USD 59 | — | — |
| Southwest Airlines | — | — | — |
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 Philadelphia to San José (Alajuela) cost?
Based on 179 offers · November 2026
Philadelphia to San José (Alajuela) flights ranged from USD 819 to USD 2353 across 179 offers analyzed in November 2026. The chart below shows how prices distributed across all 179 offers.
These 179 offers (November 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 1422 and USD 1808
What hidden fees do Philadelphia to San José (Alajuela) flights charge?
Ancillary fees — bags, seat selection, and payment surcharges — can add 10–25% to the base fare on Philadelphia to San José (Alajuela) routes. The breakdown below is based on 179 offers analyzed in November 2026.
| Carrier | Avg fee (USD) | % of base fare |
|---|---|---|
| UA | 10 | 1% |
| AC | 12 | 1% |
| AA | 13 | 1% |
| F9 | 112 | 7% |
| DL | 16 | 1% |
| B6 | 27 | 2% |
| WN | 10 | 1% |
Frontier Airlines: base ~USD 1544 + fees USD 112 = ~USD 1656 total. United Airlines: base ~USD 1832 + fees USD 10 = ~USD 1842 total.
Frontier Airlines's USD 112 ancillary fees narrow the gap with United Airlines's lower-fee model — the USD 288 base difference shrinks to USD 186 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 Philadelphia to San José (Alajuela)?
9 airlines flew Philadelphia to San José (Alajuela) 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 (Air Canada), fares ranged USD 1061–1489 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) |
|---|---|---|---|---|
 Air Canada | 4 | 1061–1489 | 1208 | 12 (1%) |
 Frontier | 12 | 1210–1531 | 1238 | n/a |
 American Airlines | 77 | 1132–1865 | 1457 | 13 (1%) |
 AM | 4 | 1640–1725 | 1655 | n/a |
 Frontier Airlines | 5 | 1416–1679 | 1656 | 112 (7%) |
 B6 | 25 | 1573–1868 | 1733 | 27 (2%) |
 Delta Air Lines | 32 | 1717–2069 | 1808 | 16 (1%) |
 United Airlines | 11 | 916–1939 | 1842 | 10 (1%) |
 Southwest Airlines | 9 | 1745–2018 | 1986 | 10 (1%) |
Where do the best Philadelphia → San José (Alajuela) 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: Philadelphia to San José (Alajuela) flights
- Full-service carriers on Philadelphia–San José (Alajuela) cost 1.0x more than budget airlines (USD 1594 vs USD 1653 median; overall median USD 1713).
- F9 charges 11.2x more in ancillary fees than WN — USD 112 vs USD 10 avg per booking.
- The same route priced USD 1014 apart depending on where it was booked — the lowest median was USD 868. 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 Philadelphia to San José (Alajuela) cost?
- Based on 179 offers analyzed, Philadelphia to San José (Alajuela) flights range from USD 819 to USD 2353, with a median price of USD 1713. Search for your specific dates →
- What hidden fees should I expect on Philadelphia to San José (Alajuela) flights?
- On average, ancillary fees (bags, seat selection) add USD 18 to the base fare on Philadelphia to San José (Alajuela) flights. See itemized fees for your itinerary →
- Which airline is cheapest on Philadelphia to San José (Alajuela) including all fees?
- Air Canada has the lowest median fare on Philadelphia to San José (Alajuela) at USD 1208 (median across 4 offers in our snapshot). Check which airline wins on your dates →
- Which booking site has the cheapest Philadelphia–San José (Alajuela) 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 868. Run a live search and we'll find the cheapest for you →
- Why do prices vary so much on Philadelphia to San José (Alajuela) routes?
- Philadelphia to San José (Alajuela) has 9 airlines competing, creating a price range from USD 819 to USD 2353 across 179 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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