United MileagePlus award flights from Seattle (SEA) to Tokyo Haneda (HND)
In the last 30 days AwardTool saw United MileagePlus award space for SEA→HND in economy, premium economy and business class. Lowest economy: 55,000 miles + $5.60 (economy space on 337 dates). Lowest business class: 110,000 miles + $5.60 (business-class space on 337 dates). Lowest premium economy: 65,000 miles + $5.60 (premium economy space on 337 dates).
Prices observed – ; newest observation .
Page regenerated from the Oct 16, 2026 data snapshot (normally daily). Summary last changed . Seats change quickly.
- Lowest economy
- 55,000 miles + $5.60
- economy space on 337 dates
- Lowest business class
- 110,000 miles + $5.60
- business-class space on 337 dates
- Lowest premium economy
- 65,000 miles + $5.60
- premium economy space on 337 dates
MileagePlus award prices by cabin
The lowest one-way United MileagePlus award AwardTool observed on SEA→HND in each cabin, in miles plus taxes.
| Cabin | Points + taxes | Stops | Airlines seen | Seats | Dates seen | Newest observation | |
|---|---|---|---|---|---|---|---|
| Economy | 55,000 miles + $5.60 | 1 stopNonstop from 60,500 pts | Air Canada (AC), EVA Air (BR), ANA (NH), United Airlines (UA) | 1 | 337 | See dates | |
| Premium Economy | 65,000 miles + $5.60 | 1 stop | United Airlines (UA) | 9+ | 337 | See dates | |
| Business | 110,000 miles + $5.60 | Nonstop | ANA (NH), United Airlines (UA) | 2 | 337 | See dates |
Not seen means AwardTool hasn't observed this cabin on this route in the last 30 days. It doesn't mean the airline has no seats. Dates seen counts departure dates with an open award in that cabin at any price; newest observation is the latest time AwardTool saw one of them. Seats is the count the program reported when we observed it; some programs report at most 9.
Observed MileagePlus award examples
| Departure | Cabin | Points + taxes | Seats | Stops | Observed (UTC) | |
|---|---|---|---|---|---|---|
| Economy | 55,000 miles + $5.60 | 1 | 1 stop | Check this date | ||
| Economy | 55,000 miles + $5.60 | 9+ | 1 stop | Check this date | ||
| Economy | 55,000 miles + $5.60 | 1 | 1 stop | Check this date | ||
| Premium Economy | 65,000 miles + $5.60 | 9+ | 1 stop | Check this date | ||
| Premium Economy | 65,000 miles + $5.60 | 9+ | 1 stop | Check this date | ||
| Premium Economy | 65,000 miles + $5.60 | 9+ | 1 stop | Check this date | ||
| Business | 196,700 miles + $5.60 | 9+ | 1 stop | Check this date | ||
| Business | 196,700 miles + $5.60 | 9+ | 1 stop | Check this date |
Prices are one-way per traveler: the program's points or miles plus taxes and carrier fees in USD, as AwardTool observed them in the observation window. Award space changes constantly. A seat we saw may be gone, and space we haven't seen may exist. Always confirm with a live search before transferring points; most transfers can't be reversed.
How often MileagePlus award space showed up
Departure dates in the next 365 days that AwardTool checked for United MileagePlus in the last 30 days, how many had award space in each cabin at any price, and the latest departure with space.
| Cabin | Dates with space | Share of dates checked | Latest departure with space |
|---|---|---|---|
| Economy | 337 of 337 | 100% | |
| Premium Economy | 337 of 337 | 100% | |
| Business | 337 of 337 | 100% |
Best months to fly from Seattle (SEA) to Tokyo Haneda (HND) with MileagePlus
| Month | Economy | Premium Economy | Business |
|---|---|---|---|
| 55,000 (16 dates) | 65,000 (16 dates) | 250,000 (16 dates) | |
| 55,000 (30 dates) | 65,000 (30 dates) | 196,700 (30 dates) | |
| 55,000 (31 dates) | 65,000 (31 dates) | 196,700 (31 dates) | |
| 55,000 (31 dates) | 65,000 (31 dates) | 110,000 (31 dates) | |
| 55,000 (28 dates) | 65,000 (28 dates) | 110,000 (28 dates) | |
| 60,500 (31 dates) | 122,400 (31 dates) | 236,800 (31 dates) | |
| 55,000 (30 dates) | 131,300 (30 dates) | 110,000 (30 dates) | |
| 60,500 (31 dates) | 138,600 (31 dates) | 110,000 (31 dates) | |
| 60,500 (30 dates) | 150,800 (30 dates) | 236,800 (30 dates) | |
| 60,500 (31 dates) | 65,000 (31 dates) | 236,800 (31 dates) | |
| 55,000 (31 dates) | 65,000 (31 dates) | 110,000 (31 dates) | |
| 55,000 (17 dates) | 131,300 (17 dates) | 236,800 (17 dates) |
How to get MileagePlus miles
- Bilt Rewards: 1:1 · Instant
- Chase Ultimate Rewards: 1:1 · Instant
Check current transfer bonuses. Most transfers can't be reversed.
MileagePlus vs other programs from Seattle (SEA) to Tokyo Haneda (HND)
Lowest one-way award per program and cabin on this route.
| Program | Economy | Premium Economy | Business | First |
|---|---|---|---|---|
| Air France/KLM Flying Blue | 32,000 pts + $33.50 | 65,000 pts + $458.10 | 115,000 pts + $712.30 | — |
| Alaska Atmos Rewards | 30,000 pts + $5.60Lowest | 55,000 pts + $25.60 | 150,000 pts + $25.60Mixed cabin | 150,000 pts + $5.60Lowest |
| American Airlines AAdvantage | 35,000 pts + $5.60 | 50,000 pts + $5.60Lowest | 152,000 pts + $5.60 | 240,000 pts + $5.60 |
| Avianca LifeMiles | 45,000 pts + $29.00 | — | — | — |
| Delta SkyMiles | 40,300 pts + $5.60 | 104,500 pts + $5.60 | 195,700 pts + $5.60 | 430,100 pts + $5.60 |
| Emirates Skywards | 45,000 pts + $311.00 | 109,000 pts + $311.00 | 121,000 pts + $1,254.00 | — |
| Etihad Guest | 75,000 pts + $38.00 | — | 139,999 pts + $441.30 | — |
| Qantas Frequent Flyer | 34,700 pts + $349.00 | 70,800 pts + $353.00 | 90,000 pts + $349.00 | — |
| United MileagePlus | 55,000 pts + $5.60 | 65,000 pts + $5.60 | 110,000 pts + $5.60 | — |
| Virgin Atlantic Flying Club | 38,000 pts + $38.30 | — | — | — |
| Virgin Australia Velocity | 32,500 pts + $31.39 | 142,000 pts + $216.78 | 75,000 pts + $31.45Lowest | — |
Questions about MileagePlus award flights from Seattle (SEA) to Tokyo Haneda (HND)
How many miles do you need to fly from Seattle (SEA) to Tokyo Haneda (HND) with United MileagePlus?
The lowest one-way United MileagePlus awards AwardTool observed in the last 30 days (newest observation Oct 16, 2026): economy 55,000 miles + $5.60, with monthly lows of 55,000 miles in 8 months and 60,500 miles in 4 months, and award space on 337 departure dates; premium economy 65,000 miles + $5.60, with a typical monthly low of 65,000 miles over 12 months and award space on 337 departure dates; business class 110,000 miles + $5.60, with a typical monthly low of 196,700 miles over 12 months and award space on 337 departure dates. Monthly lows varied in economy (55,000 to 60,500 miles), premium economy (65,000 to 150,800 miles) and business class (110,000 to 250,000 miles), so the award on your dates may cost more. Search live before transferring points.
What's the lowest MileagePlus award from Seattle (SEA) to Tokyo Haneda (HND)?
In economy, 55,000 miles + $5.60. Seen Oct 16, 2026, 06:03 UTC for an Oct 19, 2026 departure. United MileagePlus showed economy award space on 337 departure dates at any price (newest observation Oct 16, 2026, 07:43 UTC). In business class, 110,000 miles + $5.60. United MileagePlus showed business-class award space on 337 departure dates at any price (newest observation Oct 16, 2026, 07:43 UTC). Search live before transferring points.
Can you book nonstop awards from Seattle (SEA) to Tokyo Haneda (HND) with MileagePlus?
Yes. AwardTool observed nonstop United MileagePlus award space in business class, and in economy from 60,500 miles.
Which credit card points can book MileagePlus awards from Seattle (SEA) to Tokyo Haneda (HND)?
Bilt Rewards (1:1, Instant) and Chase Ultimate Rewards (1:1, Instant). Check current transfer bonuses; most transfers can't be reversed.
Which months had the lowest MileagePlus award prices from Seattle (SEA) to Tokyo Haneda (HND)?
Counting only month prices from programs with award space on 2 or more dates that month, and leaving out unusually low outliers, the lowest economy award AwardTool observed was for Dec 2026 departures: 55,000 miles (31 dates). The month table shows every lowest price, including those. Based on dates we observed, not a forecast.