Washington to Cancun DCA, IAD → CUN
Ronald Reagan National Airport (DCA), Washington Dulles International Airport (IAD) → Cancun International Airport (CUN)
The cheapest return found recently is $432 with American Airlines, 1 Jan 2027 – 10 Jan 2027, found yesterday.
Return
The cheapest return fare on each of 5 departure dates is usually $415 to $515.
Cheapest return found recently
$432
1 Jan 2027 – 10 Jan 2027 · American Airlines
Ronald Reagan National Airport (DCA) → Cancun International Airport (CUN)
Leaves 5:00 a.m. · Return leaves 4:35 p.m. · 23 h 46 min of travel, both ways together
out 1 stop, back 1 stop
found yesterday
Cheapest nonstop return
None seen yet.
Found recently, and the cheapest we hold
$432 1 Jan 2027 – 10 Jan 2027found yesterdaySee prices for these dates
$410 8 Nov – 13 Novfound 6 days agoSee prices for these dates
What have prices looked like?
Over 25 days, 24 Sept to 18 Oct, the cheapest return we saw each day was $343 to $456.
25 days is a short history, so treat this range as an early guide.
Those were the prices on those days, not today's.
Is this a good return price?
Compared with the cheapest return fare on each of 5 departure dates from 23 Oct to 1 Jan 2027, found by travelers' searches in the last 7 days (economy, the price the seller showed on Aviasales). The usual range is the middle half of those prices.
Could nearby dates be cheaper?
We hold no other 9-night return fares leaving within 3 days of 1 Jan 2027 to compare.
Every date we hold
10 fares on 5 departure dates
See the chart as a table
| Dates | From | Airline | Airports | Stops | Found | |
|---|---|---|---|---|---|---|
| 23 Oct – 27 Oct | $515 | American Airlines | Washington Dulles International Airport (IAD) → Cancun International Airport (CUN) | out 1 stop, back 1 stop | found yesterday | See prices for these dates |
| 8 Nov – 13 Nov | $410 | jetBlue | Ronald Reagan National Airport (DCA) → Cancun International Airport (CUN) | out 1 stop, back 1 stop | found 6 days ago | See prices for these dates |
| 4 Dec – 8 Dec | $415 | Frontier Airlines | Washington Dulles International Airport (IAD) → Cancun International Airport (CUN) | out 1 stop, back 1 stop | found 5 days ago | See prices for these dates |
| 27 Dec – 8 Jan 2027 | $588 | Frontier Airlines | Washington Dulles International Airport (IAD) → Cancun International Airport (CUN) | out 1 stop, back 1 stop | found 5 days ago | See prices for these dates |
| 1 Jan 2027 – 10 Jan 2027 | $432 | American Airlines | Ronald Reagan National Airport (DCA) → Cancun International Airport (CUN) | out 1 stop, back 1 stop | found yesterday | See prices for these dates |
Which month looks cheapest?
November 2026 is the cheapest month — from $410.
Airlines on the cheapest dates: American Airlines, Frontier Airlines, jetBlue.
Premium cabin fares from Washington to Cancun
We hold no premium economy, business or first-class fares for this route: we collect them for the busiest routes, and this one is not among them yet.
Today's prices for 1 Jan 2027 – 10 Jan 2027 in another cabin: Premium economy · Business · First
How far ahead were prices cheapest for Washington to Cancun?
Return
Fares 90 to 179 days before departure were typically 6% lower than 7 to 13 days before departure.
From the cheapest return each day between 24 Sept and 18 Oct (25 days), grouped by how many days ahead the flight left; one adult in economy.
Each range covers different departure dates, so this compares typical fares, not the same trip priced twice.
Prices reflect recent searches — current fares may differ.
See these ranges as a table
| Booked ahead by | Typical fare | Cheapest day | Above the cheapest | Days of prices |
|---|---|---|---|---|
| 7–13 days | $426 | $426 | +6% | 9 |
| 14–29 days | $418 | $343 | +4% | 14 |
| 30–59 days | $415 | $357 | +4% | 25 |
| 60–89 days | $418 | $363 | +4% | 24 |
| 90–179 days | $401 | $388 | Cheapest seen | 10 |
Could a nearby airport be cheaper?
A different airport at either end can change the fare — sometimes a lot.
Return
Baltimore → Cancun
57 km from Washington
$519
$87 more than flying from Washington
23 Oct – 27 Oct · BWI → CUN · out 1 stop, back 1 stop
found yesterday
Charlottesville → Cancun
149 km from Washington
$609
$177 more than flying from Washington
23 Oct – 27 Oct · CHO → CUN · out 1 stop, back 2 stops
found yesterday
Cheapest recent price on each route — round trip, per traveler in Economy. Distances are in a straight line.
Live price for these dates
The cheapest return found recently is for 1 Jan 2027 – 10 Jan 2027. A live search on this page shows what those dates cost now, for one adult in economy.
Prices are what travelers' searches on Aviasales found in the last 7 days, in US dollars: the price the seller showed on Aviasales; bags may cost extra. Fares change, so check today's price before you book. How our prices work