Flights Dulles → Sydney (Mascot)
As of November 2026, economy flights from Dulles to Sydney (Mascot) have a typical range USD 1565–4943, median USD 1885. Full range across all 218 offers: USD 1442–12943. We analyzed 218 offers from 20 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 → Sydney (Mascot)
Based on 218 offers · November 2026. Prices and availability change — run a live search to confirm.
Bag & seat fees: Dulles → Sydney (Mascot)
Add-on pricing from the cheapest available offer per airline · November 2026 · USD
| Airline | Carry-on | Checked bag | Seat selection |
|---|---|---|---|
| Air New Zealand | Included | — | — |
| Alaska Airlines | Included | USD 35 | — |
| Delta | Included | Included | — |
| American Airlines | Included | Included | — |
| Qantas Airways | Included | Included | — |
| United Airlines | Included | Included | — |
| Air Canada | Included | USD 30 | — |
| Emirates | Included | Included | — |
| Etihad Airways | Included | Included | — |
| Qatar Airways | Included | Included | — |
| Malaysia Airlines | Included | Included | — |
| ANA (All Nippon Airways) | Included | Included | — |
| JetBlue | Included | Included | — |
| SWISS | Included | USD 40 | — |
| British Airways | Included | USD 65 | — |
| Korean Air | Included | Included | — |
| Lufthansa | Included | USD 35 | — |
| Air France | Included | Included | — |
| Air China | 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 Dulles to Sydney (Mascot) cost?
Based on 218 offers · November 2026
Dulles to Sydney (Mascot) flights ranged from USD 1442 to USD 12943 across 218 offers analyzed in November 2026. The chart below shows how prices distributed across all 218 offers.
These 218 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 1681 and USD 2151
What hidden fees do Dulles to Sydney (Mascot) flights charge?
Ancillary fees — bags, seat selection, and payment surcharges — can add 10–25% to the base fare on Dulles to Sydney (Mascot) routes. The breakdown below is based on 218 offers analyzed in November 2026.
| Carrier | Avg fee (USD) | % of base fare |
|---|---|---|
| NZ | 30 | 2% |
| AS | 43 | 2% |
| DL | 19 | 1% |
| AA | 10 | 1% |
| QF | 15 | 1% |
| UA | 31 | 2% |
| AC | 42 | 2% |
| EK | 20 | 1% |
| EY | 15 | 1% |
| QR | 20 | 1% |
| MH | 15 | 1% |
| NH | 0 | 0% |
| B6 | 10 | 0% |
| LX | 52 | 2% |
| BA | 80 | 3% |
| KE | 15 | 0% |
| LH | 45 | 1% |
| AF | 38 | 1% |
| CA | 30 | 0% |
British Airways: base ~USD 2981 + fees USD 80 = ~USD 3061 total. Korean Air: base ~USD 4138 + fees USD 15 = ~USD 4153 total.
British Airways's USD 80 ancillary fees narrow the gap with Korean Air's lower-fee model — the USD 1157 base difference shrinks to USD 1092 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 Sydney (Mascot)?
20 airlines flew Dulles to Sydney (Mascot) 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 (Air New Zealand), fares ranged USD 1493–1800 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) |
|---|---|---|---|---|
 Air New Zealand | 54 | 1493–1800 | 1663 | 30 (2%) |
 Alaska Airlines | 35 | 1565–1693 | 1681 | 43 (3%) |
 American Airlines | 11 | 1727–1969 | 1728 | 10 (1%) |
 Qantas | 5 | 1852–1991 | 1967 | 15 (1%) |
 United Airlines | 49 | 1881–1972 | 1972 | 31 (2%) |
 United | 5 | 1972–7353 | 1972 | n/a |
 Etihad Airways | 1 | — | 1993 | 15 (1%) |
 ANA | 1 | — | 2175 | 0 (0%) |
 Air Canada | 5 | 2031–2445 | 2226 | 42 (2%) |
 Malaysia Airlines | 2 | 2140–2444 | 2292 | 15 (1%) |
 B6 | 1 | — | 2300 | 10 (0%) |
 Qatar Airways | 6 | 2120–2854 | 2451 | 20 (1%) |
 Emirates | 6 | 1932–2786 | 2464 | 20 (1%) |
 Delta Air Lines | 4 | 1707–3513 | 2524 | 19 (1%) |
 Swiss | 3 | 2623–3137 | 2955 | 52 (2%) |
 British Airways | 1 | — | 3061 | 80 (3%) |
 Korean Air | 4 | 3476–4645 | 4153 | 15 (0%) |
 Lufthansa | 2 | 4216–4730 | 4473 | 45 (1%) |
 Air France | 22 | 5290–8130 | 5296 | 38 (1%) |
 Air China | 1 | — | 12943 | 30 (0%) |
Where do the best Dulles → Sydney (Mascot) prices come from?
We checked direct airlines, travel agencies, and meta-search for this route. On this route the lowest median came from meta-search 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 Sydney (Mascot) flights
- Full-service carriers on Dulles–Sydney (Mascot) cost 1.4x more than budget airlines (USD 3157 vs USD 2300 median; overall median USD 1885).
- BA charges 8.0x more in ancillary fees than B6 — USD 80 vs USD 10 avg per booking.
- The same route priced USD 291 apart depending on where it was booked — the lowest median was USD 1681. 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 Sydney (Mascot) cost?
- Based on 218 offers analyzed, Dulles to Sydney (Mascot) flights range from USD 1442 to USD 12943, with a median price of USD 1885. Search for your specific dates →
- What hidden fees should I expect on Dulles to Sydney (Mascot) flights?
- On average, ancillary fees (bags, seat selection) add USD 31 to the base fare on Dulles to Sydney (Mascot) flights. See itemized fees for your itinerary →
- Which airline is cheapest on Dulles to Sydney (Mascot) including all fees?
- Air New Zealand has the lowest median fare on Dulles to Sydney (Mascot) at USD 1663 (median across 54 offers in our snapshot). Check which airline wins on your dates →
- Which booking site has the cheapest Dulles–Sydney (Mascot) 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 1681. Run a live search and we'll find the cheapest for you →
- Why do prices vary so much on Dulles to Sydney (Mascot) routes?
- Dulles to Sydney (Mascot) has 20 airlines competing, creating a price range from USD 1442 to USD 12943 across 218 offers. Prices on this route change with booking timing, advance purchase, and ancillary add-ons. Find where your trip lands in the distribution →
20 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