Business class · IAD to CUN
Washington DC to Cancún in business class
About 3 hours 39 minutes nonstop. Here is every airline we quote on this route, the seat each one flies and the lounge before you board.
Get a quote for this route
A specialist compares the options and quotes the full price before you pay.
Ways to fly it
3 airlines we quote between Washington DC and Cancún. The seat depends on the aircraft, so we confirm it for your exact flight.
- oneworld
American Airlines
American Airlines Flagship Suite
Suite with closing door
Flagship Suite with sliding privacy door, 1-2-1, direct aisle access — on 777-300ER and new 787-9P (delivered 2025)
- Seat width
- 21 inches (at the shoulders)
- Bed length
- 79 inches
- Loyalty program
- AAdvantage
Lounge: Flagship Lounge (JFK/MIA/DFW/LAX/ORD)
- SkyTeam
Delta Air Lines
Delta One Suite
Suite with closing door
Rolling multi-year rollout: Delta One Suite (closing door) established on A350-900, expanding to A330-200/300; NEXT-GEN suite (3+in longer bed) debuting on new A350-1000 from 2026/2027; older 767 fleet typically lacks a door
- Seat width
- 22 inches
- Bed length
- 78 inches (current Suite); 6.5ft+ / 3+in longer on the incoming next-gen A350-1000 suite
- Loyalty program
- Delta SkyMiles
Lounge: Delta Sky Club + Delta One Lounge (JFK)
- Star Alliance
United Airlines
United Polaris Business Class
Lie-flat, 1-2-1
Lie-flat pod with direct aisle access; new "Polaris 2.0" cabin debuting on new-delivery 787-9s from April 2026 (SFO-Singapore, expanding to SFO-London)
- Seat width
- 22 inches
- Bed length
- 78 inches
- Loyalty program
- MileagePlus
Lounge: United Polaris Lounge (ORD/EWR/SFO/IAD/LAX) — bedrooms, showers, à la carte dining
Nonstop flights, IAD to CUN
2 nonstop flights on the airline timetable, in local time at each airport. Schedules change with the season, so we confirm the flight for your dates when we quote.
| Flight | Departs IAD | Arrives CUN | In the air | Days |
|---|---|---|---|---|
| United Airlines UA 1154 | 8:26 AM | 11:05 AM | 3 h 39 min | Daily |
| United Airlines UA 1276 | 12:35 PM | 3:12 PM | 3 h 37 min | Mon, Thu, Fri, Sat, Sun |
Source: airline timetable data, checked October 23, 2026. Lists flights operated by the airlines in our airline guide; regional partners, cargo and charter flights, and airlines without a business, first or premium economy cabin are left out.
The route in numbers
Every cabin, both directions (CUN-IAD), from the US Department of Transportation's T-100 data for 2025.
- Passengers in the year
- 229,549
- Flights in the year
- 1,512
- Passengers per flight, on average
- 152
Who carries the passengers
| United Airlines | 100% |
|---|
Source: BTS T-100 Segment (All Carriers), calendar year 2025, scheduled passenger service; ingested 2026-10-23. Figures include every cabin, not only business class.
Onboard: dining, entertainment and bags
What each airline offers in business class. Details can differ by aircraft and route.
| Airline | Dining | Entertainment | Checked bags |
|---|---|---|---|
| American Airlines | Multi-course Flagship dining, curated wine selection | Seatback touchscreen IFE, Bluetooth audio | 2 × 32kg checked |
| Delta Air Lines | Multi-course dining, partnerships with celeb chefs | Seatback touchscreen IFE, Delta Studio | 2 × 32kg checked |
| United Airlines | Multi-course dining, Saks Fifth Avenue bedding | Seatback touchscreen, Bluetooth audio | 2 × 32kg checked |
Before you fly: lounges at IAD
All lounges at Washington Dulles International AirportUnited Polaris Lounge
Midfield Terminal, Concourse C, near Gate C17
United Polaris standard or flexible fares (same-day itinerary); First Class on Lufthansa, SWISS or ANA (+1 guest); Business on ANA, Air New Zealand or ITA, and Basic/Flex Business on Lufthansa, SWISS, Austrian or Brussels Airlines, at the long-haul departure airport
United Club (Concourse C, near Gate C17)
Midfield Terminal, Concourse C, near Gate C17 (other United Clubs: Concourse C near C7; Concourse D near D8)
United Club members and one-time passholders; United Polaris (transcon/long-haul/Hawaii) and United Business international passengers; Star Alliance first/business on an international departure; Star Alliance Gold on an international Star Alliance itinerary
Air France - KLM Lounge
Concourse A, near Gate A20 (Emirates lounge finder), after security near the Air France boarding area
Air France/KLM and SkyTeam eligible passengers; Emirates' designated lounge at IAD; Delta lists it as a partner lounge; Priority Pass listing
Virgin Atlantic Clubhouse
Concourse A, in front of Gate A20 (Delta locator)
Virgin Atlantic Upper Class and eligible partner/status passengers; Delta lists it as a partner lounge; Priority Pass listing
Quote for Washington DC to Cancún
- The full price per traveler, with taxes, fees and fare rules.
- Business class first; premium economy or first class on request.
- Under the US DOT 24-hour rule you can cancel within 24 hours of booking when you book at least 7 days before departure.
Questions about this route
Which airlines fly business class from Washington DC to Cancún?
United Airlines flies nonstop from IAD to CUN on the airline timetable checked October 23, 2026. We quote American Airlines, Delta, United Airlines; every quote shows the schedule, any connection and the seat for each option.
How long is the flight from Washington DC to Cancún?
About 3 hours 39 minutes on a nonstop flight, by the airline timetable. One-stop trips take longer, depending on the connection.
Which business class seat is best on this route?
American Airlines and Delta offer suites with a closing door on some aircraft. Seats vary by aircraft, so we confirm the seat on your exact flight before you book.
Is the price you quote the full price?
Yes. Every quote is the total per traveler including taxes and fees, with the fare rules, before you pay anything.