Award flights from Istanbul (IST) to Seattle (SEA)
In the last 30 days AwardTool saw award space on 3 programs for IST→SEA. Lowest economy: 40,000 miles (Turkish Miles & Smiles). Lowest business: 65,000 miles (Turkish Miles & Smiles). Lowest premium economy: 55,000 miles + $84.99 (United MileagePlus).
Data as of
Award prices last changed . AwardTool checks these routes daily; seats change quickly.
IST to SEA at a glance
- From
- Istanbul Airport, Istanbul, Türkiye (IST)
- To
- Seattle-Tacoma International, Seattle, United States (SEA)
- Programs with award space seen
- 3 of 5 programs tracked on this route
- Nonstop award space seen
- Yes, in economy and business, via Turkish Miles & Smiles and United MileagePlus
- Airlines seen on these awards
- Aegean Airlines (A3), Air Canada (AC), ITA Airways (AZ), Aer Lingus (EI), Air Dolomiti (EN), Eurowings (EW), Lufthansa (LH), LOT Polish Airlines (LO), SWISS (LX), Austrian (OS), Croatia Airlines (OU), Brussels Airlines (SN) and 3 more
- Departures with open awards
- Oct 2026 to Sep 2027
- Observation window
- Awards observed in the last 30 days
- Destination guide
- Award flights to Seattle (SEA)
Compare programs by cabin
The lowest one-way award each program showed in each cabin, sorted by points.
Economy
| Program | Points + taxes | Stops | Airlines seen | Seats | Dates seen | Newest observation | |
|---|---|---|---|---|---|---|---|
| Turkish Miles & SmilesLowest observed | 40,000 pts + taxes not reported | Nonstop | Turkish Airlines (TK) | 1 | 300 | See dates | |
| Avianca LifeMiles | 43,000 pts + $58.00 | 2 stops | Air Canada (AC), Lufthansa (LH), Turkish Airlines (TK), United Airlines (UA) | 9+ | 71 | See dates | |
| United MileagePlus | 44,000 pts + $44.39 | Nonstop | Aegean Airlines (A3), Air Canada (AC), ITA Airways (AZ), Aer Lingus (EI) +11 more | 6 | 169 | See dates |
Premium Economy
| Program | Points + taxes | Stops | Airlines seen | Seats | Dates seen | Newest observation | |
|---|---|---|---|---|---|---|---|
| United MileagePlus | 55,000 pts + $84.99 | 2 stops | Turkish Airlines (TK), United Airlines (UA) | 2 | 5 | See dates |
Not seen in premium economy: Avianca LifeMiles and Turkish Miles & Smiles.
Business
| Program | Points + taxes | Stops | Airlines seen | Seats | Dates seen | Newest observation | |
|---|---|---|---|---|---|---|---|
| Turkish Miles & SmilesLowest observed | 65,000 pts + taxes not reported | Nonstop | Turkish Airlines (TK) | 1 | 298 | See dates | |
| United MileagePlus | 88,000 pts + $44.69 | Nonstop | Aer Lingus (EI), Lufthansa (LH), Turkish Airlines (TK), United Airlines (UA) | 1 | 30 | See dates |
Not seen in business: Avianca LifeMiles.
First: not seen in the last 30 days.
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 award examples
| Departure | Cabin | Program | Points + taxes | Seats | Stops | Observed (UTC) | |
|---|---|---|---|---|---|---|---|
| Economy | Turkish Miles & Smiles | 40,000 pts + taxes not reported | 1 | Nonstop | Check this date | ||
| Economy | Avianca LifeMiles | 43,000 pts + $58.00 | 9+ | 2 stops | Check this date | ||
| Premium Economy | United MileagePlus | 55,000 pts + $94.29 | 9+ | 2 stops | Check this date | ||
| Business | Turkish Miles & Smiles | 65,000 pts + taxes not reported | 1 | Nonstop | 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 at the time shown. 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.
Nonstop award space
- Economy: nonstop from 40,000 miles via Turkish Miles & Smiles, which showed nonstop space on 300 dates (2 programs had nonstop space).
- Business: nonstop from 65,000 miles via Turkish Miles & Smiles, which showed nonstop space on 298 dates (2 programs had nonstop space).
Best months to fly IST to SEA on points
| Month | Economy | Premium Economy | Business |
|---|---|---|---|
| 40,000 · Miles&Smiles (16 dates) | — | 88,000 · MileagePlus (2 dates) | |
| 40,000 · Miles&Smiles (24 dates) | 55,000 · MileagePlus (4 dates) | 65,000 · Miles&Smiles (24 dates) | |
| 40,000 · Miles&Smiles (27 dates) | 55,000 · MileagePlus (1 date) | 65,000 · Miles&Smiles (27 dates) | |
| 40,000 · Miles&Smiles (20 dates) | — | 65,000 · Miles&Smiles (20 dates) | |
| 40,000 · Miles&Smiles (20 dates) | — | 65,000 · Miles&Smiles (20 dates) | |
| 40,000 · Miles&Smiles (31 dates) | — | 65,000 · Miles&Smiles (31 dates) | |
| 40,000 · Miles&Smiles (30 dates) | — | 65,000 · Miles&Smiles (30 dates) | |
| 40,000 · Miles&Smiles (31 dates) | — | 135,000 · Miles&Smiles (31 dates) | |
| 40,000 · Miles&Smiles (30 dates) | — | 135,000 · Miles&Smiles (30 dates) | |
| 55,000 · Miles&Smiles (31 dates) | — | 135,000 · Miles&Smiles (31 dates) | |
| 55,000 · Miles&Smiles (27 dates) | — | 135,000 · Miles&Smiles (27 dates) | |
| 40,000 · Miles&Smiles (13 dates) | — | 135,000 · Miles&Smiles (13 dates) |
Points that transfer to these programs
| Program | Amex | Bilt | Capital One | Chase | Citi | Wells Fargo |
|---|---|---|---|---|---|---|
| Avianca LifeMiles | 1:1 · Instant | 1:1 · Instant | 1:1 · Instant | — | 1:1 · Instant | 1:1 · Instant |
| Turkish Miles & Smiles | — | 1:1 · Instant | 1:1 · Instant | — | 1:1 · ~1 day | — |
| United MileagePlus | — | 1:1 · Instant | — | 1:1 · Instant | — | — |
Check current transfer bonuses. Most transfers can't be reversed.
Search, calendar and alerts for IST to SEA
Route calendar
Every departure date with open award seats on IST→SEA for Turkish Miles & Smiles and the other programs: a limited window on the free plan and 365 days with Pro.
Open the route calendarLive search
Search one date across programs to see current flights, seats and taxes before you transfer points.
Search IST to SEAQuestions about IST to SEA award flights
What's the lowest Istanbul to Seattle award price AwardTool has seen?
In economy, 40,000 miles with Turkish Miles & Smiles. Turkish Miles & Smiles showed economy award space on 300 departure dates (newest observation Oct 16, 2026, 04:34 UTC). In business, 65,000 miles with Turkish Miles & Smiles. Turkish Miles & Smiles showed business award space on 298 departure dates (newest observation Oct 16, 2026, 04:34 UTC). Search live before transferring points.
Which loyalty programs had award space on IST→SEA?
3 programs in the last 30 days: Avianca LifeMiles (economy 71 dates); Turkish Miles & Smiles (economy 300 dates, business 298 dates); United MileagePlus (economy 169 dates, premium economy 5 dates, business 30 dates). Dates count departure dates with an open award.
Is there nonstop award space from IST to SEA?
Yes. AwardTool observed nonstop award space in economy and business, bookable via Turkish Miles & Smiles and United MileagePlus. The lowest nonstop award in economy was 40,000 miles with Turkish Miles & Smiles.
Which credit card points transfer to these programs?
American Express Membership Rewards: Avianca LifeMiles (1:1). Bilt Rewards: Avianca LifeMiles (1:1), Turkish Miles & Smiles (1:1), United MileagePlus (1:1). Capital One Miles: Avianca LifeMiles (1:1), Turkish Miles & Smiles (1:1). Chase Ultimate Rewards: United MileagePlus (1:1). Citi ThankYou Points: Avianca LifeMiles (1:1), Turkish Miles & Smiles (1:1). Wells Fargo Rewards: Avianca LifeMiles (1:1). Ratios come from AwardTool's transfer partner list; check current bonuses first.
Which months had the lowest IST→SEA award prices?
Counting only month prices from programs with award space on 2 or more dates that month, and leaving out unusually low outliers: in economy, the lowest award was for Mar 2027 departures, 40,000 miles with Miles&Smiles (31 dates); in business, the lowest award was for Mar 2027 departures, 65,000 miles with Miles&Smiles (31 dates). The month table shows every lowest price, including those. Based on dates we observed, not a forecast.