Flights Boston → Kahului
As of November 2026, economy flights from Boston to Kahului have a typical range USD 668–1435, median USD 819. Full range across all 234 offers: USD 658–5689. We analyzed 234 offers from 6 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 → Kahului
Based on 234 offers · November 2026. Prices and availability change — run a live search to confirm.
Bag & seat fees: Boston → Kahului
Add-on pricing from the cheapest available offer per airline · November 2026 · USD
| Airline | Carry-on | Checked bag | Seat selection |
|---|---|---|---|
| Delta | Included | USD 35 | — |
| Alaska Airlines | Included | USD 35 | — |
| United Airlines | Included | USD 35 | — |
| Delta | — | USD 90 | — |
| American Airlines | Included | USD 35 | — |
| Southwest Airlines | Included | Included | — |
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 Kahului cost?
Based on 234 offers · November 2026
Boston to Kahului flights ranged from USD 658 to USD 5689 across 234 offers analyzed in November 2026. The chart below shows how prices distributed across all 234 offers.
These 234 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 745 and USD 980
What hidden fees do Boston to Kahului flights charge?
Ancillary fees — bags, seat selection, and payment surcharges — can add 10–25% to the base fare on Boston to Kahului routes. The breakdown below is based on 234 offers analyzed in November 2026.
| Carrier | Avg fee (USD) | % of base fare |
|---|---|---|
| DL | 45 | 5% |
| AS | 39 | 4% |
| UA | 44 | 4% |
| Delta | 90 | 13% |
| AA | 45 | 4% |
| WN | 23 | 1% |
Delta: base ~USD 584 + fees USD 90 = ~USD 674 total. Southwest Airlines: base ~USD 1741 + fees USD 23 = ~USD 1764 total.
Delta's USD 90 ancillary fees narrow the gap with Southwest Airlines's lower-fee model — the USD 1157 base difference shrinks to USD 1090 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.Delta charges 4.0x more in ancillary fees than WN 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 Kahului?
6 airlines flew Boston to Kahului 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 (Delta), fares ranged USD 674–677 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) |
|---|---|---|---|---|
 Delta | 5 | 674–677 | 674 | 90 (13%) |
 United Airlines | 114 | 680–1050 | 800 | 44 (5%) |
 Alaska Airlines | 39 | 738–1094 | 823 | 39 (5%) |
 Delta Air Lines | 62 | 668–1435 | 871 | 45 (5%) |
 American Airlines | 10 | 784–1212 | 950 | 45 (5%) |
 Southwest Airlines | 4 | 1764–1884 | 1764 | 23 (1%) |
Where do the best Boston → Kahului 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 Kahului flights
- Full-service carriers on Boston–Kahului cost 0.5x more than budget airlines (USD 824 vs USD 1764 median; overall median USD 819).
- Delta charges 4.0x more in ancillary fees than WN — USD 90 vs USD 23 avg per booking.
- The same route priced USD 761 apart depending on where it was booked — the lowest median was USD 674. 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 Kahului cost?
- Based on 234 offers analyzed, Boston to Kahului flights range from USD 658 to USD 5689, with a median price of USD 819. Search for your specific dates →
- What hidden fees should I expect on Boston to Kahului flights?
- On average, ancillary fees (bags, seat selection) add USD 44 to the base fare on Boston to Kahului flights. See itemized fees for your itinerary →
- Which airline is cheapest on Boston to Kahului including all fees?
- Delta has the lowest median fare on Boston to Kahului at USD 674 (median across 5 offers in our snapshot). Check which airline wins on your dates →
- Which booking site has the cheapest Boston–Kahului 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 674. Run a live search and we'll find the cheapest for you →
- Why do prices vary so much on Boston to Kahului routes?
- Boston to Kahului has 6 airlines competing, creating a price range from USD 658 to USD 5689 across 234 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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