United has round-trip flights from Seattle (SEA) to Cancun (CUN) for $216-$226 with a connection. Flights February to May. No Thursday departures. Extended Weekends available.
You can also save an additional 16% off your Hotel or up to $150 for Flight+Hotel packages on CheapTickets by using the “WANDERLUST” or “ADVENTURE150” coupon codes at checkout (before finalizing your booking). Be sure to check our coupon code page for a list of other coupons that are available.
Note: United “Basic Economy” fares do not include a free carry-on bag. Only a personal item (like a small laptop bag) is free. Seats are randomly assigned for free prior to boarding. If you have the United MileagePlus credit-card, use the “free checked bag” perk.
Note: The personal item size on United flights is smaller (9-in/10-in/17-in) than Frontier or Spirit (8-in/14-in/18-in).
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