Flights Boston → Charleston
As of October 2026, economy flights from Boston to Charleston have a typical range USD 278–451, median USD 348. Full range across all 214 offers: USD 278–878. We analyzed 214 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 → Charleston
Based on 214 offers · October 2026. Prices and availability change — run a live search to confirm.
Bag & seat fees: Boston → Charleston
Add-on pricing from the cheapest available offer per airline · October 2026 · USD
| Airline | Carry-on | Checked bag | Seat selection |
|---|---|---|---|
| Delta | Included | USD 35 | — |
| Delta | — | USD 90 | — |
| American Airlines | Included | USD 35 | — |
| United | Included | USD 35 | — |
| Southwest Airlines | Included | Included | — |
| Alaska Airlines | Included | USD 35 | — |
| JetBlue | — | USD 98 | — |
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 Charleston cost?
Based on 214 offers · October 2026
Boston to Charleston flights ranged from USD 278 to USD 878 across 214 offers analyzed in October 2026. The chart below shows how prices distributed across all 214 offers.
These 214 offers (October 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 298 and USD 358
What hidden fees do Boston to Charleston flights charge?
Ancillary fees — bags, seat selection, and payment surcharges — can add 10–25% to the base fare on Boston to Charleston routes. The breakdown below is based on 214 offers analyzed in October 2026.
| Carrier | Avg fee (USD) | % of base fare |
|---|---|---|
| DL | 45 | 14% |
| Delta | 90 | 31% |
| AA | 45 | 13% |
| UA | 45 | 9% |
| WN | 0 | 0% |
| AS | 45 | 5% |
| JetBlue | 98 | 11% |
Delta: base ~USD 189 + fees USD 90 = ~USD 279 total. Delta Air Lines: base ~USD 253 + fees USD 45 = ~USD 298 total.
Delta's USD 90 ancillary fees narrow the gap with Delta Air Lines's lower-fee model — the USD 64 base difference shrinks to USD 19 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.JetBlue charges 2.2x 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 Charleston?
7 airlines flew Boston to Charleston 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 279–314 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 | 16 | 279–314 | 279 | 90 (32%) |
 Delta Air Lines | 100 | 278–348 | 298 | 45 (15%) |
 American Airlines | 60 | 298–358 | 338 | 45 (13%) |
 United Airlines | 27 | 298–785 | 381 | 45 (12%) |
 Southwest Airlines | 9 | 429–625 | 506 | 0 (0%) |
 Alaska Airlines | 1 | — | 862 | 45 (5%) |
 JetBlue | 1 | — | 877 | 98 (11%) |
Where do the best Boston → Charleston 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 Charleston flights
- Full-service carriers on Boston–Charleston cost 0.6x more than budget airlines (USD 432 vs USD 691 median; overall median USD 348).
- JetBlue charges 2.2x more in ancillary fees than AS — USD 98 vs USD 45 avg per booking.
- The same route priced USD 69 apart depending on where it was booked — the lowest median was USD 279. 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 Charleston cost?
- Based on 214 offers analyzed, Boston to Charleston flights range from USD 278 to USD 878, with a median price of USD 348. Search for your specific dates →
- What hidden fees should I expect on Boston to Charleston flights?
- On average, ancillary fees (bags, seat selection) add USD 47 to the base fare on Boston to Charleston flights. See itemized fees for your itinerary →
- Which airline is cheapest on Boston to Charleston including all fees?
- Delta has the lowest median fare on Boston to Charleston at USD 279 (median across 16 offers in our snapshot). Check which airline wins on your dates →
- Which booking site has the cheapest Boston–Charleston 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 279. Run a live search and we'll find the cheapest for you →
- Why do prices vary so much on Boston to Charleston routes?
- Boston to Charleston has 7 airlines competing, creating a price range from USD 278 to USD 878 across 214 offers. Prices on this route change with booking timing, advance purchase, and ancillary add-ons. Find where your trip lands in the distribution →
7 airlines compete on this route — we check every one
Find flights for my datesNew route — be among the first to track this itinerary
Building with flight data? Power your app or agent with LetsFG
The same multi-source search behind this page — every airline and the major booking sites, deduplicated and ranked — is available to your app or AI agent. Natural-language or structured queries, live prices, zero price bias.
Try the free sandbox — no card →Free sandbox, instant fake results · email for a key · Bearer-token auth · MCP, Python & JS SDKs · letsfg.co/developers