Your next trip, last seen at €177
Lowest observedAlaska Airlines · 2 stops · One wayWhen to fly
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The lowest fare we observed for each month. Open a month to see its days, then pick your outbound and return. A day with no price is one we will search for you.
- Lowest observed
- €177, departing 17 Nov 2026 (Last checked: 14 Oct 2026)One-way fare · Priced departure days checked in the last 14 days: 91Check live prices for this route
- Airlines seen
- Alaska Airlines, United Airlines
- Typical journey time
- 12h 50m
About this route
Explore the fares we observed from Kauai Island to San Diego. Prices move often, so pick your dates to see the latest options.
- Route distance
- 4,306 km
- Typical journey time
- 12h 50m
- Airlines seen
- Alaska Airlines, United Airlines
- Seen on fares with a connection
- Alaska Airlines, United Airlines
- Alternative airports
- CLD
Route-level information; individual journeys vary.
We have not observed non-stop service on this route; the fares shown include at least one stop.
A clearer picture of your fare
Non-stop airlines seen on this route
| Airline | Non-stop days / priced days | Fastest non-stop |
|---|---|---|
| Alaska Airlines | 28 / 91 |
Departure days with a non-stop fare checked in the last 14 days. A carrier listed here had a non-stop fare on at least 3 days; schedules may differ.
Airport to city: straight-line distance
- Lihue Airport (LIH) → Kauai Island, city gazetteer reference point (21.9811, -159.3711): ≈ 4 km.
- San Diego International Airport (SAN) → San Diego, city gazetteer reference point (32.7153, -117.1573): ≈ 4 km.
- McClellan-Palomar Airport (CLD) → San Diego, city gazetteer reference point (32.7153, -117.1573): ≈ 47 km.
Approximate distances calculated from coordinates, not road distances or travel times. These airports serve the city; they are not confirmed endpoints of an offer.
Lowest fare by departure month
Cheapest month from Kauai Island to San Diego: November 2026, from €177 (checked 14 Oct 2026).
| Month | Lowest fare | Priced days |
|---|---|---|
| October 2026 | €232 | 16 |
| November 2026 | €177 | 30 |
| December 2026 | €183 | 31 |
| January 2027 | €177 | 14 |
Lowest fare by day of the week
Cheapest day of the week from Kauai Island to San Diego: Tuesday, from €177 (checked 14 Oct 2026).
| Day | Lowest fare | Priced days |
|---|---|---|
| Monday | €183 | 13 |
| Tuesday | €177 | 13 |
| Wednesday | €177 | 13 |
| Thursday | €183 | 13 |
| Friday | €183 | 13 |
| Saturday | €225 | 13 |
| Sunday | €210 | 13 |
One-way fares checked in the last 14 days. Each figure is the lowest priced departure day we saw, not a guaranteed fare.
Lowest fare by days before departure
Lowest fare from Kauai Island to San Diego by days until departure (31 to 60 days): €177 (checked 14 Oct 2026).
| Days before departure | Lowest fare | Priced days |
|---|---|---|
| 0 to 7 days | €277 | 8 |
| 8 to 30 days | €183 | 23 |
| 31 to 60 days | €177 | 30 |
| 61 days or more | €177 | 30 |
One-way fares checked in the last 14 days. Each figure is the lowest stored fare for that distance to departure, not a price forecast.
Fares for different departure dates, checked now; not a guide to when to book.
Lowest one-way fare we saw per airline
Cheapest airline from Kauai Island to San Diego: Alaska Airlines, from €177 (checked 14 Oct 2026).
| Airline | Lowest fare | Priced days |
|---|---|---|
| Alaska Airlines | €177Nov 17, 2026 | 87 |
| United Airlines | €239Dec 20, 2026 | 4 |
One-way fares checked in the last 14 days. An airline listed here had a fare on at least 3 departure days. Each figure is the lowest we saw, not a guaranteed fare. Connecting itineraries are included; the date is the departure day of that fare.
Frequently asked
How much is a flight from Kauai Island to San Diego?
The lowest fare we have observed is €177, found on 14 Oct 2026. Prices move, so read it as a floor rather than a quote.
When is the cheapest month to fly from Kauai Island to San Diego?
Cheapest month from Kauai Island to San Diego: November 2026, from €177 (checked 14 Oct 2026).
Are there direct flights from Kauai Island to San Diego?
Our data holds no non-stop flight from Kauai Island to San Diego. The fares on this page include at least one stop.
Which airlines fly from Kauai Island to San Diego?
These are the carriers we have seen on the route: Alaska Airlines, United Airlines.
How long does the flight from Kauai Island to San Diego take?
The average journey time across the 101 fares we observed is 12h 04m, including any stops. Individual departures vary; the fastest observed flight is listed in the route facts above.
Which airlines had non-stop offers on at least 3 departure dates from Kauai Island to San Diego?
For Kauai Island to San Diego, examples of observed one-way non-stop offers checked within the last 14 days: Alaska Airlines (28). Each number counts distinct departure dates, not weekly flights; check current availability in search.
Which day of the week is cheapest from Kauai Island to San Diego?
Cheapest day of the week from Kauai Island to San Diego: Tuesday, from €177 (checked 14 Oct 2026).
Which airline has the lowest fare from Kauai Island to San Diego?
Cheapest airline from Kauai Island to San Diego: Alaska Airlines, from €177 (checked 14 Oct 2026).
How observed prices work, what "No data" means and what a fare includes: Read the flight price guide
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Recently observed fares. Prices may change.
Last checked: 14 Oct 2026