Flights San Diego → Lihue, Kauai
As of November 2026, economy flights from San Diego to Lihue, Kauai have a typical range USD 609–2749, median USD 944. Full range across all 377 offers: USD 511–5140. We analyzed 377 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: San Diego → Lihue, Kauai
Based on 377 offers · November 2026. Prices and availability change — run a live search to confirm.
Bag & seat fees: San Diego → Lihue, Kauai
Add-on pricing from the cheapest available offer per airline · November 2026 · USD
| Airline | Carry-on | Checked bag | Seat selection |
|---|---|---|---|
| United | — | USD 95 | — |
| United Airlines | Included | USD 35 | — |
| Alaska Airlines | Included | USD 35 | — |
| Southwest Airlines | Included | Included | — |
| Southwest | — | USD 90 | — |
| American Airlines | Included | USD 35 | — |
| Delta | Included | USD 35 | — |
| Alaska Airlines | Included | — | — |
| Alaska | — | 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 San Diego to Lihue, Kauai cost?
Based on 377 offers · November 2026
San Diego to Lihue, Kauai flights ranged from USD 511 to USD 5140 across 377 offers analyzed in November 2026. The chart below shows how prices distributed across all 377 offers.
These 377 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 732 and USD 1255
What hidden fees do San Diego to Lihue, Kauai flights charge?
Ancillary fees — bags, seat selection, and payment surcharges — can add 10–25% to the base fare on San Diego to Lihue, Kauai routes. The breakdown below is based on 377 offers analyzed in November 2026.
| Carrier | Avg fee (USD) | % of base fare |
|---|---|---|
| United | 99 | 16% |
| UA | 49 | 4% |
| AS | 24 | 2% |
| WN | 27 | 3% |
| Southwest | 90 | 13% |
| AA | 48 | 5% |
| DL | 43 | 1% |
| ASHA | 0 | 0% |
| Alaska | 90 | 9% |
United: base ~USD 517 + fees USD 99 = ~USD 616 total. Alaska Airlines: base ~USD 1114 + fees USD 24 = ~USD 1138 total.
United's USD 99 ancillary fees narrow the gap with Alaska Airlines's lower-fee model — the USD 597 base difference shrinks to USD 522 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 San Diego to Lihue, Kauai?
9 airlines flew San Diego to Lihue, Kauai 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 (United), fares ranged USD 511–671 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) |
|---|---|---|---|---|
 United | 21 | 511–671 | 616 | 99 (16%) |
 Southwest | 7 | 667–672 | 672 | 90 (13%) |
 United Airlines | 102 | 568–2904 | 747 | 49 (7%) |
 American Airlines | 49 | 751–1266 | 841 | 48 (6%) |
 Southwest Airlines | 101 | 775–1284 | 1021 | 27 (3%) |
 Alaska | 2 | 1013–1030 | 1022 | 90 (9%) |
 Alaska Airlines | 61 | 619–1587 | 1138 | 24 (2%) |
 ASHA | 4 | 864–1483 | 1170 | 0 (0%) |
 Delta Air Lines | 30 | 1165–4905 | 3000 | 43 (1%) |
Where do the best San Diego → Lihue, Kauai 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: San Diego to Lihue, Kauai flights
- Full-service carriers on San Diego–Lihue, Kauai cost 1.4x more than budget airlines (USD 1219 vs USD 847 median; overall median USD 944).
- United charges 4.2x more in ancillary fees than AS — USD 99 vs USD 24 avg per booking.
- The same route priced USD 585 apart depending on where it was booked — the lowest median was USD 609. 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 San Diego to Lihue, Kauai cost?
- Based on 377 offers analyzed, San Diego to Lihue, Kauai flights range from USD 511 to USD 5140, with a median price of USD 944. Search for your specific dates →
- What hidden fees should I expect on San Diego to Lihue, Kauai flights?
- On average, ancillary fees (bags, seat selection) add USD 42 to the base fare on San Diego to Lihue, Kauai flights. See itemized fees for your itinerary →
- Which airline is cheapest on San Diego to Lihue, Kauai including all fees?
- United has the lowest median fare on San Diego to Lihue, Kauai at USD 616 (median across 21 offers in our snapshot). Check which airline wins on your dates →
- Which booking site has the cheapest San Diego–Lihue, Kauai 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 609. Run a live search and we'll find the cheapest for you →
- Why do prices vary so much on San Diego to Lihue, Kauai routes?
- San Diego to Lihue, Kauai has 9 airlines competing, creating a price range from USD 511 to USD 5140 across 377 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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