Flights Boston → Kailua-Kona
As of November 2026, economy flights from Boston to Kailua-Kona have a typical range USD 691–1769, median USD 1045. Full range across all 370 offers: USD 686–6501. We analyzed 370 offers from 7 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: Boston → Kailua-Kona
Based on 370 offers · November 2026. Prices and availability change — run a live search to confirm.
Bag & seat fees: Boston → Kailua-Kona
Add-on pricing from the cheapest available offer per airline · November 2026 · USD
| Airline | Carry-on | Checked bag | Seat selection |
|---|---|---|---|
| Delta | Included | USD 35 | — |
| United | Included | USD 35 | — |
| American Airlines | Included | USD 35 | — |
| Delta | — | USD 90 | — |
| United | — | USD 100 | — |
| Alaska Airlines | Included | USD 35 | — |
| 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 Boston to Kailua-Kona cost?
Based on 370 offers · November 2026
Boston to Kailua-Kona flights ranged from USD 686 to USD 6501 across 370 offers analyzed in November 2026. The chart below shows how prices distributed across all 370 offers.
These 370 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 698 and USD 1424
What hidden fees do Boston to Kailua-Kona flights charge?
Ancillary fees — bags, seat selection, and payment surcharges — can add 10–25% to the base fare on Boston to Kailua-Kona routes. The breakdown below is based on 370 offers analyzed in November 2026.
| Carrier | Avg fee (USD) | % of base fare |
|---|---|---|
| DL | 44 | 3% |
| UA | 45 | 4% |
| AA | 45 | 3% |
| Delta | 90 | 13% |
| United | 100 | 14% |
| AS | 30 | 2% |
| Alaska | 90 | 8% |
United: base ~USD 592 + fees USD 100 = ~USD 692 total. Alaska Airlines: base ~USD 1208 + fees USD 30 = ~USD 1238 total.
United's USD 100 ancillary fees narrow the gap with Alaska Airlines's lower-fee model — the USD 616 base difference shrinks to USD 546 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.United charges 3.4x more in ancillary fees than AS on this route. Compare total-cost options when booking.
Run your search to see itemized fees for your itineraryWhich airline is cheapest from Boston to Kailua-Kona?
7 airlines flew Boston to Kailua-Kona 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.
| Airline | Offers | Typical range (USD) | Median (USD) | Fees (USD) |
|---|---|---|---|---|
 Delta | 3 | — | 686 | 90 (13%) |
 United | 16 | 692–734 | 692 | 100 (14%) |
 United Airlines | 147 | 691–1774 | 777 | 45 (6%) |
 Delta Air Lines | 82 | 691–1985 | 1033 | 44 (4%) |
 Alaska | 1 | — | 1105 | 90 (8%) |
 Alaska Airlines | 34 | 758–1530 | 1238 | 30 (2%) |
 American Airlines | 87 | 776–1668 | 1338 | 45 (3%) |
Where do the best Boston → Kailua-Kona prices come from?
We checked direct airlines, travel agencies, and meta-search for this route. On this route the lowest median came from travel agency 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 Kailua-Kona flights
- Boston–Kailua-Kona had 370 offers analyzed. Median price: USD 1045.
- United charges 3.4x more in ancillary fees than AS — USD 100 vs USD 30 avg per booking.
- The same route priced USD 658 apart depending on where it was booked — the lowest median was USD 692. 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 Kailua-Kona cost?
- Based on 370 offers analyzed, Boston to Kailua-Kona flights range from USD 686 to USD 6501, with a median price of USD 1045. Search for your specific dates →
- What hidden fees should I expect on Boston to Kailua-Kona flights?
- On average, ancillary fees (bags, seat selection) add USD 46 to the base fare on Boston to Kailua-Kona flights. See itemized fees for your itinerary →
- Which airline is cheapest on Boston to Kailua-Kona including all fees?
- Delta has the lowest median fare on Boston to Kailua-Kona at USD 686 (median across 3 offers in our snapshot). Check which airline wins on your dates →
- Which booking site has the cheapest Boston–Kailua-Kona 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 692. Run a live search and we'll find the cheapest for you →
- Why do prices vary so much on Boston to Kailua-Kona routes?
- Boston to Kailua-Kona has 7 airlines competing, creating a price range from USD 686 to USD 6501 across 370 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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