Flights Seattle → São Paulo
As of November 2026, economy flights from Seattle to São Paulo have a typical range USD 1099–3036, median USD 1973. Full range across all 201 offers: USD 928–10758. We analyzed 201 offers from 14 airlines in a single price check.
Preview snapshot — prices change. Search for live results.
Data collected by LetsFG's multi-source price checks — every airline and the major booking sites checked for this route. How we collect data →
Best offers by airline: Seattle → São Paulo
Based on 201 offers · November 2026. Prices and availability change — run a live search to confirm.
Bag & seat fees: Seattle → São Paulo
Add-on pricing from the cheapest available offer per airline · November 2026 · USD
| Airline | Carry-on | Checked bag | Seat selection |
|---|---|---|---|
| LATAM Airlines | Included | USD 40 | — |
| United Airlines | — | USD 35 | — |
| Copa | Included | USD 40 | — |
| Alaska Airlines | — | USD 35 | — |
| WestJet | — | USD 30 | — |
| GOL Linhas Aéreas | — | — | — |
| American Airlines | — | USD 35 | — |
| Delta | Included | USD 35 | — |
| Aeromexico | Included | Included | — |
| Air Canada | Included | USD 30 | — |
| Avianca | Included | USD 30 | — |
Fees are estimates from the prices we checked and may not reflect your specific itinerary, booking class, or payment method. Run a live search for exact pricing.
How much do flights from Seattle to São Paulo cost?
Based on 201 offers · November 2026
Seattle to São Paulo flights ranged from USD 928 to USD 10758 across 201 offers analyzed in November 2026. The chart below shows how prices distributed across all 201 offers.
These 201 offers (November 2026) span multiple departure dates and booking windows — your travel dates may fall anywhere in this distribution. Only a live search shows where your specific trip lands.
50% of offers priced between USD 1363 and USD 2509
What hidden fees do Seattle to São Paulo flights charge?
Ancillary fees — bags, seat selection, and payment surcharges — can add 10–25% to the base fare on Seattle to São Paulo routes. The breakdown below is based on 201 offers analyzed in November 2026.
| Carrier | Avg fee (USD) | % of base fare |
|---|---|---|
| LA | 53 | 2% |
| UA | 46 | 2% |
| CM | 55 | 3% |
| AS | 46 | 2% |
| WS | 38 | 2% |
| G3 | 30 | 2% |
| AA | 45 | 3% |
| DL | 42 | 2% |
| AM | 0 | 0% |
| AC | 42 | 2% |
| AV | 40 | 1% |
Copa Airlines: base ~USD 1921 + fees USD 55 = ~USD 1976 total. Avianca: base ~USD 3155 + fees USD 40 = ~USD 3195 total.
Copa Airlines's USD 55 ancillary fees narrow the gap with Avianca's lower-fee model — the USD 1234 base difference shrinks to USD 1219 after fees. Always compare total cost, not just the advertised base fare.
Estimates based on median total minus average ancillary fee. Actual base fares vary by itinerary.CM charges 1.8x more in ancillary fees than G3 on this route. Compare total-cost options when booking.
Run your search to see itemized fees for your itineraryWhich airline is cheapest from Seattle to São Paulo?
14 airlines flew Seattle to São Paulo in this dataset. Knowing the airline isn't enough — the typical fare range below shows how far prices swing on each one. Median and range include all fees we recorded.
Even on the cheapest airline (American), fares ranged USD 1078–1201 in this snapshot. Your exact price depends on your dates and how far ahead you book — run a live search to see your number →
| Airline | Offers | Typical range (USD) | Median (USD) | Fees (USD) |
|---|---|---|---|---|
 American | 20 | 1078–1201 | 1124 | n/a |
 United | 2 | 1072–1196 | 1134 | n/a |
 GOL | 3 | 1257–1592 | 1257 | 30 (2%) |
 Alaska | 1 | — | 1257 | n/a |
 United Airlines | 25 | 928–5153 | 1408 | 46 (3%) |
 AM | 2 | 1411–1469 | 1440 | 0 (0%) |
 WestJet | 7 | 1229–2102 | 1483 | 38 (3%) |
 American Airlines | 8 | 1361–1654 | 1559 | 45 (3%) |
 Copa Airlines | 8 | 984–2059 | 1976 | 55 (3%) |
 LATAM Airlines | 40 | 1473–2951 | 2164 | 53 (2%) |
 Delta Air Lines | 20 | 1503–2896 | 2167 | 42 (2%) |
 Alaska Airlines | 57 | 1490–3114 | 2193 | 46 (2%) |
 Air Canada | 6 | 2362–2931 | 2587 | 42 (2%) |
 Avianca | 2 | 3016–3373 | 3195 | 40 (1%) |
Where do the best Seattle → São Paulo prices come from?
We checked direct airlines, travel agencies, and meta-search for this route. On this route the lowest median came from travel agency sources, but the cheapest channel shifts by route and date — which is exactly why a live search across all of them wins.
We compare every airline and the major booking sites but never disclose which — that's our edge. Prices are the ones we observed and aren't official data from any platform. Run a live search and we bring you the cheapest, wherever it is.
Key facts: Seattle to São Paulo flights
- Full-service carriers on Seattle–São Paulo cost 1.2x more than budget airlines (USD 1805 vs USD 1483 median; overall median USD 1973).
- CM charges 1.8x more in ancillary fees than G3 — USD 55 vs USD 30 avg per booking.
- The same route priced USD 1489 apart depending on where it was booked — the lowest median was USD 1124. We search every airline and the major booking sites at once so you always see that lowest price.
Frequently asked questions
- How much does a flight from Seattle to São Paulo cost?
- Based on 201 offers analyzed, Seattle to São Paulo flights range from USD 928 to USD 10758, with a median price of USD 1973. Search for your specific dates →
- What hidden fees should I expect on Seattle to São Paulo flights?
- On average, ancillary fees (bags, seat selection) add USD 47 to the base fare on Seattle to São Paulo flights. See itemized fees for your itinerary →
- Which airline is cheapest on Seattle to São Paulo including all fees?
- American has the lowest median fare on Seattle to São Paulo at USD 1124 (median across 20 offers in our snapshot). Check which airline wins on your dates →
- Which booking site has the cheapest Seattle–São Paulo flights?
- It depends on your dates — no single site is always cheapest. We search every airline and the major booking sites at once (travel agencies and meta-search included) and surface whichever is lowest; the best median in this snapshot was USD 1124. Run a live search and we'll find the cheapest for you →
- Why do prices vary so much on Seattle to São Paulo routes?
- Seattle to São Paulo has 14 airlines competing, creating a price range from USD 928 to USD 10758 across 201 offers. Prices on this route change with booking timing, advance purchase, and ancillary add-ons. Find where your trip lands in the distribution →
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