Flights Dulles → Miami
As of November 2026, economy flights from Dulles to Miami have a typical range USD 931–1913, median USD 1389. Full range across all 324 offers: USD 408–3493. We analyzed 324 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: Dulles → Miami
Based on 324 offers · November 2026. Prices and availability change — run a live search to confirm.
Bag & seat fees: Dulles → Miami
Add-on pricing from the cheapest available offer per airline · November 2026 · USD
| Airline | Carry-on | Checked bag | Seat selection |
|---|---|---|---|
| Frontier Airlines | — | — | — |
| United | — | — | — |
| United | — | USD 100 | — |
| American Airlines | — | — | — |
| American | — | USD 100 | — |
| Delta | — | — | — |
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 Dulles to Miami cost?
Based on 324 offers · November 2026
Dulles to Miami flights ranged from USD 408 to USD 3493 across 324 offers analyzed in November 2026. The chart below shows how prices distributed across all 324 offers.
These 324 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 1141 and USD 1538
What hidden fees do Dulles to Miami flights charge?
Ancillary fees — bags, seat selection, and payment surcharges — can add 10–25% to the base fare on Dulles to Miami routes. The breakdown below is based on 324 offers analyzed in November 2026.
| Carrier | Avg fee (USD) | % of base fare |
|---|---|---|
| F9 | 10 | 2% |
| UA | 10 | 1% |
| United | 100 | 11% |
| AA | 10 | 1% |
| American | 100 | 10% |
| DL | 10 | 0% |
United: base ~USD 741 + fees USD 100 = ~USD 841 total. United Airlines: base ~USD 1200 + fees USD 10 = ~USD 1210 total.
United's USD 100 ancillary fees narrow the gap with United Airlines's lower-fee model — the USD 459 base difference shrinks to USD 369 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 Dulles to Miami?
7 airlines flew Dulles to Miami 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 (Frontier Airlines), fares ranged USD 412–923 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) |
|---|---|---|---|---|
 Frontier Airlines | 15 | 412–923 | 514 | 10 (2%) |
 Frontier | 13 | 589–904 | 760 | n/a |
 United | 5 | 841–925 | 841 | 100 (12%) |
 American | 1 | — | 980 | 100 (10%) |
 United Airlines | 114 | 956–1487 | 1210 | 10 (1%) |
 American Airlines | 98 | 1126–1548 | 1472 | 10 (1%) |
 Delta Air Lines | 78 | 1474–2775 | 1906 | 10 (1%) |
Where do the best Dulles → Miami 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: Dulles to Miami flights
- Full-service carriers on Dulles–Miami cost 2.0x more than budget airlines (USD 1282 vs USD 637 median; overall median USD 1389).
- United charges 10.0x more in ancillary fees than DL — USD 100 vs USD 10 avg per booking.
- The same route priced USD 1395 apart depending on where it was booked — the lowest median was USD 795. 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 Dulles to Miami cost?
- Based on 324 offers analyzed, Dulles to Miami flights range from USD 408 to USD 3493, with a median price of USD 1389. Search for your specific dates →
- What hidden fees should I expect on Dulles to Miami flights?
- On average, ancillary fees (bags, seat selection) add USD 12 to the base fare on Dulles to Miami flights. See itemized fees for your itinerary →
- Which airline is cheapest on Dulles to Miami including all fees?
- Frontier Airlines has the lowest median fare on Dulles to Miami at USD 514 (median across 15 offers in our snapshot). Check which airline wins on your dates →
- Which booking site has the cheapest Dulles–Miami 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 795. Run a live search and we'll find the cheapest for you →
- Why do prices vary so much on Dulles to Miami routes?
- Dulles to Miami has 7 airlines competing, creating a price range from USD 408 to USD 3493 across 324 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