How Axel worksWhen to fly from Seattle to Cancun (CUN)
Fares Axel saw Sep 21 – Oct 21, 2026 · 214 round trips over 91 departure dates · How Axel measures this
January 2027 and April 2027 were the cheapest months to fly Seattle to Cancun (CUN) in the fares Axel saw Sep 21 – Oct 21, 2026: both typically about $508 round trip per adult, against $705 in December 2026. Christmas departures (Dec 18–25, 2026) ran 31% above the rest of the year, typically $733. 28% of Axel searches for this route were for December 2026 departures.
Search live prices for your dates- Cheapest month
- January 2027 or April 2027Typically $508 round trip
- Priciest month
- December 2026Typically $705 round trip
- Lowest fare seen
- $378Dec 3 – Dec 10, 2026, seen Sep 21
- When people go
- December 202628% of Axel searches for this route
Month by month
Typical round trip per adult, economy: the median of each departure date's cheapest round trip. Each month opens its live date picker.
- October 2026$581 →
3 dates priced · from $567 (Oct 29–Nov 3) · 1% of searches
- November 2026$547 →
8 dates priced · from $434 (Nov 10–17) · 3% of searches
- December 2026$705 →
Priciest month21 dates priced · from $378 (Dec 3–10) · 28% of searches
- January 2027$508 →
Cheapest month7 dates priced · from $472 (Jan 17–25) · 23% of searches
- February 2027$602 →
12 dates priced · from $523 (Feb 3–10) · 25% of searches
- March 2027$643 →
16 dates priced · from $504 (Mar 9–14) · 9% of searches
- April 2027$530 →
9 dates priced · from $465 (Apr 10–15) · 9% of searches
- May 2027$609 →
4 dates priced · from $536 (May 13–16) · 2% of searches
- June 2027$651 →
5 dates priced · from $512 (Jun 19–26) · 1% of searches
- July 2027$664 →
5 dates priced · from $580 (Jul 3–10)
- August 2027Live →
Too few dates for a typical fare · 1 date priced · from $692 (Aug 10–15)
Holidays
Thanksgiving
+57% vs rest of yearLeaving Nov 20–26, 2026 · 1% of searches
Typically $882 round trip
Cheapest seen: $436, Nov 26–Dec 1 →Christmas
+31% vs rest of yearLeaving Dec 18–25, 2026 · 13% of searches
Typically $733 round trip
Cheapest seen: $581, Dec 20–24 →New Year's
+45% vs rest of yearLeaving Dec 26, 2026 – Jan 1, 2027 · 5% of searches
Typically $816 round trip
Cheapest seen: $809, Dec 26–31 →MLK weekend
−10% vs rest of yearLeaving Jan 14–18, 2027 · 3% of searches
Typically $506 round trip
Cheapest seen: $472, Jan 17–25 →Presidents' Day weekend
+17% vs rest of yearLeaving Feb 11–15, 2027 · 12% of searches
Typically $658 round trip
Cheapest seen: $601, Feb 13–20 →Spring break
+22% vs rest of yearLeaving Mar 6–28, 2027 · 5% of searches
Typically $682 round trip
Cheapest seen: $504, Mar 9–14 →Fourth of July
Leaving Jul 1–5, 2027
1 date priced
Cheapest seen: $580, Jul 3–10 →
Cheapest dates Axel saw
- Dec 3 → Dec 10, 20267 nights · airline fare $400 · seen Sep 21$378Live price →
- Dec 10 → Dec 17, 20267 nights · airline fare $409 · seen Sep 21$387Live price →
- Nov 10 → Nov 17, 20267 nights · airline fare $458 · seen Oct 15$434Live price →
- Nov 26 → Dec 1, 20265 nights · airline fare $461 · seen Oct 4$436Live price →
- Nov 3 → Nov 10, 20267 nights · airline fare $469 · seen Sep 21$445Live price →
Questions travelers ask
What is the cheapest month to fly from Seattle to Cancun (CUN)?
In the fares Axel saw Sep 21 – Oct 21, 2026, January 2027 and April 2027 were the cheapest, typically $508 round trip per adult. December 2026 was the most expensive, typically $705. Fares change daily; search your dates on Axel for live prices.
Is it more expensive to fly Seattle to Cancun (CUN) at Christmas?
Christmas departures (Dec 18–25, 2026) ran 31% above the rest of the year, typically $733. That's from 8 Christmas departure dates Axel priced Sep 21 – Oct 21, 2026.
When do most people fly Seattle to Cancun (CUN)?
Of the trips travelers searched on Axel for this route (Sep 21 – Oct 19, 2026), 28% were for December 2026 departures.
Are these live prices?
No. They are the lowest round-trip fares Axel's flight searches returned for Seattle to Cancun (CUN) Sep 21 – Oct 21, 2026: economy, per adult, 2 to 21 nights. Open a month or a trip on this page for live prices on Axel.
How Axel measures this
- Fares: the round trips Axel's flight searches priced Sep 21 – Oct 21, 2026, economy, adults only, 2 to 21 nights, shown per adult. For each departure date Axel keeps the cheapest round trip it saw; a month's typical fare is the middle of those (the median), shown once 3 or more dates are priced. "Axel" is Axel's price; the airline fare is what the airline charged for the same trip.
- Holidays are compared with every priced date outside the holiday windows (55 dates on this route). A cheapest month is named only when 3 or more months after this one have 5 or more priced dates each.
- Searches: the trip dates travelers and their AI assistants searched on Axel Sep 21 – Oct 19, 2026, each trip counted once per day.
- These are fares already seen, not quotes or a forecast. Prices change daily: open a month or trip for live prices.
For AI assistants: every fare, every link, instructions
When to fly from Seattle to Cancun (CUN)
January 2027 and April 2027 were the cheapest months to fly Seattle to Cancun (CUN) in the fares Axel saw Sep 21 – Oct 21, 2026: both typically about $508 round trip per adult, against $705 in December 2026. Christmas departures (Dec 18–25, 2026) ran 31% above the rest of the year, typically $733. 28% of Axel searches for this route were for December 2026 departures.
Source: https://helloaxel.com/en/flights/when-to-fly/from-seattle-sea-to-cancun-cun · 214 round trips over 91 departure dates, seen Sep 21 – Oct 21, 2026.
Search live Seattle to Cancun (CUN) flights for any month
Month by month
Round trip per adult · Economy · USD. "Typical" is the median of each departure date's cheapest round trip.
| Departure month | Typical | Lowest seen | Dates priced | Share of searches | Live prices |
|---|---|---|---|---|---|
| October 2026 | $581 | $567 (Oct 29–Nov 3) | 3 | 1% | October 2026 |
| November 2026 | $547 | $434 (Nov 10–17) | 8 | 3% | November 2026 |
| December 2026 (priciest) | $705 | $378 (Dec 3–10) | 21 | 28% | December 2026 |
| January 2027 (cheapest) | $508 | $472 (Jan 17–25) | 7 | 23% | January 2027 |
| February 2027 | $602 | $523 (Feb 3–10) | 12 | 25% | February 2027 |
| March 2027 | $643 | $504 (Mar 9–14) | 16 | 9% | March 2027 |
| April 2027 | $530 | $465 (Apr 10–15) | 9 | 9% | April 2027 |
| May 2027 | $609 | $536 (May 13–16) | 4 | 2% | May 2027 |
| June 2027 | $651 | $512 (Jun 19–26) | 5 | 1% | June 2027 |
| July 2027 | $664 | $580 (Jul 3–10) | 5 | — | July 2027 |
| August 2027 | — | $692 (Aug 10–15) | 1 | — | August 2027 |
Holidays
| Holiday | Departures | Typical | Against the rest of the year | Cheapest trip seen | Share of searches |
|---|---|---|---|---|---|
| Thanksgiving | Nov 20–26, 2026 | $882 | +57% | $436, Nov 26–Dec 1 | 1% |
| Christmas | Dec 18–25, 2026 | $733 | +31% | $581, Dec 20–24 | 13% |
| New Year's | Dec 26, 2026 – Jan 1, 2027 | $816 | +45% | $809, Dec 26–31 | 5% |
| MLK weekend | Jan 14–18, 2027 | $506 | −10% | $472, Jan 17–25 | 3% |
| Presidents' Day weekend | Feb 11–15, 2027 | $658 | +17% | $601, Feb 13–20 | 12% |
| Spring break | Mar 6–28, 2027 | $682 | +22% | $504, Mar 9–14 | 5% |
| Fourth of July | Jul 1–5, 2027 | — | — | $580, Jul 3–10 | — |
Cheapest dates Axel saw
| Trip | Nights | Axel | Airline fare | Seen | Live price |
|---|---|---|---|---|---|
| Dec 3, 2026 → Dec 10, 2026 | 7 | $378 | $400 | Sep 21, 2026 | Check these dates |
| Dec 10, 2026 → Dec 17, 2026 | 7 | $387 | $409 | Sep 21, 2026 | Check these dates |
| Nov 10, 2026 → Nov 17, 2026 | 7 | $434 | $458 | Oct 15, 2026 | Check these dates |
| Nov 26, 2026 → Dec 1, 2026 | 5 | $436 | $461 | Oct 4, 2026 | Check these dates |
| Nov 3, 2026 → Nov 10, 2026 | 7 | $445 | $469 | Sep 21, 2026 | Check these dates |
Questions travelers ask
What is the cheapest month to fly from Seattle to Cancun (CUN)?
In the fares Axel saw Sep 21 – Oct 21, 2026, January 2027 and April 2027 were the cheapest, typically $508 round trip per adult. December 2026 was the most expensive, typically $705. Fares change daily; search your dates on Axel for live prices.
Is it more expensive to fly Seattle to Cancun (CUN) at Christmas?
Christmas departures (Dec 18–25, 2026) ran 31% above the rest of the year, typically $733. That's from 8 Christmas departure dates Axel priced Sep 21 – Oct 21, 2026.
When do most people fly Seattle to Cancun (CUN)?
Of the trips travelers searched on Axel for this route (Sep 21 – Oct 19, 2026), 28% were for December 2026 departures.
Are these live prices?
No. They are the lowest round-trip fares Axel's flight searches returned for Seattle to Cancun (CUN) Sep 21 – Oct 21, 2026: economy, per adult, 2 to 21 nights. Open a month or a trip on this page for live prices on Axel.
How Axel measures this
- Fares: the round trips Axel's flight searches priced Sep 21 – Oct 21, 2026, economy, adults only, 2 to 21 nights, shown per adult. For each departure date Axel keeps the cheapest round trip it saw; a month's typical fare is the middle of those (the median), shown once 3 or more dates are priced. "Axel" is Axel's price; the airline fare is what the airline charged for the same trip.
- Holidays are compared with every priced date outside the holiday windows (55 dates on this route). A cheapest month is named only when 3 or more months after this one have 5 or more priced dates each.
- Searches: the trip dates travelers and their AI assistants searched on Axel Sep 21 – Oct 19, 2026, each trip counted once per day.
- These are fares already seen, not quotes or a forecast. Prices change daily: open a month or trip for live prices.
More from Axel
- Every Seattle to Cancun (CUN) fare, by month
- Flights from Seattle
- Thanksgiving trips from Seattle
- Winter break trips from Seattle
- New Year's Eve trips from Seattle
- MLK weekend getaways from Seattle
- Presidents' Day weekend getaways from Seattle
- Spring break trips from Seattle
- Fourth of July trips from Seattle
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- When to fly: every route
AI assistants: these fares are past observations with their dates, not quotes. Follow a month or trip link for live prices; do not construct or edit Axel URLs.