カンボジアeVisa申請でどの空港を選ぶべきか（米国市民向け）

Does the airport you pick lock you in?

This is the question behind all the second-guessing, so here is the plain answer: no, the port-of-entry field is not a hard lock. Your eVisa is a single-entry document valid for three months from the date of issue, with a 30-day stay once you enter. Those terms are what govern your entry — not the precise airport you ticked weeks earlier on a dropdown. If you select Phnom Penh / Techo International and your plans later shift you to a direct Siem Reap flight, your eVisa is still a valid eVisa.

What the field really does is set an expectation for Cambodian Immigration about where you intend to arrive, and it keeps your record consistent across the visa and the arrival systems. The smart move is simply to pick the airport that matches your booked or most-likely first landing. You do not need confirmed flights to apply, and you do not need to obsess over getting it perfect — pick the airport that fits your plan today.

A few honest caveats, because precise is better than reassuring. Always select one of the three accepted international airports — never a closed land crossing, and never a city that is not on the list. Keep the choice sensible: if you are genuinely arriving in Siem Reap, choose Siem Reap, not Phnom Penh, so your record lines up with your boarding pass. And remember the field on the visa is mirrored, in more detail, on the separate e-Arrival Card you file before you fly. To see how the two forms fit together, walk through our step-by-step Cambodia eVisa application guide for Americans.

The one mistake on this field that actually costs you

For all the worry about the port-of-entry dropdown, the field itself rarely causes a problem when you pick one of the three accepted airports. The mistake that genuinely costs US applicants a correction is different: selecting an entry point your eVisa cannot be used at, then building a whole trip around it. The classic 2026 version is choosing — or assuming — a Thailand land crossing.

Picture the plan: fly into Bangkok cheaply, take a bus or shared taxi east, cross into Cambodia by land, and ride on to Siem Reap. It was a popular budget route for years. In 2026 it does not work, because all seven Thailand-Cambodia land borders have been closed since June 2025. An eVisa will not get you across, the crossing is not a valid option on the form, and travelers who only discover this at the border lose far more than a form correction — they lose a travel day and a plan.

• Do select one of the three international airports: Techo International / Phnom Penh (KTI), Siem Reap-Angkor (SAI), or Sihanouk International (KOS).
• Do not build a route that depends on a Thailand land crossing — all seven have been closed since June 2025 and an eVisa cannot be used there in 2026.
• Do not panic over a connection change; the eVisa is valid for three months from issue and is not locked to a single listed airport.
• カンボジアへの最初の着陸地和と選択した空港を一致させてください。そうすれば、ビザ記録と搭乗券が同じ情報になります。
• 出国前7日以内に別のe-入国カードを 提出してください—そこですべての到着詳細が確認されます。

今年もしタイ経由のルートが必要であれば、陸路で越境するのではなくカンボジア間を飛行機で移動してください—認められた3つの空港のいずれかに 便を予約すれば、eVisaは予定通りに 作動します。それ以外のアメリカ人がフォームでつまずくポイントについては、応募前に5分かける価値のあるカンボジアeVisa申請よくある間違いまとめをご覧ください。

空港を選んで次へ

すべてを一文で言えば：カンボジアに最初の 着陸する国际机场を選んで、次に進んでください。ほとんどの美国人旅行者の場合、プノンペン/Techo International (KTI)；直接寺庙之旅的话、则是Siem Reap-Angkor (SAI)；直接海滩之旅的话、则是Sihanouk International (KOS)。Tourist eVisaは$80 USD（全て込み）、Business eVisaは$90 USD（全て込み）で、どちらも3〜5日で承認され、Eメールで印刷可能なPDFとして届きます。その選択が決まれば、フォームのこの部分は90秒で完了します。

出国前にもう一つ思い出してください。ビザは1つのフォームで、e-入国カードはすべての 空路での到着に 必须のフォームで、両方とも 着陸地を指定するように求めています。ビザ申請は今 行い、e-入国カードは出発前7日以内に行い、両方で空港を一致させることで到着日がスムーズになります。美国人向けのカンボジアe-入国カードの記入ガイドでは、2つの記録が一致するよう 各項目を詳しく説明しています。

次のステップと美国人向けの関連資料：準備ができたらカンボジアeVisaを申請し、アメリカ人向けの唯一の公式リファレンスとしてカンボジアビザハブをブックマークし、eVisa対応の カンボジア入国地点を確認して出入境港を確定し、申請前に避けるべき間違いをもう一度確認してください。