カンボジア e-入国 卡口岸の選択：米国旅行者向けKTI（テチョ）とシェムリアップの比較

KTI (Techo) vs Siem Reap (SAI): how to choose when you book

For most US travelers the real fork is KTI versus SAI, and the deciding question is simple: what is the first thing you want to do in Cambodia? Answer that and the airport picks itself.

Choose Techo International (KTI) if

Your trip starts in Phnom Penh, you are traveling for business, or you are running a wide loop that takes in the capital, the coast, and the temples in some order. KTI is the largest of the three, carries the most international connections, and is where the bulk of one-stop routings out of the United States funnel through. If you are unsure where your itinerary will settle and you just want the airport with the most options around it, KTI is the safe default. It is also the airport most likely to already be on your ticket if your flight was booked through a major US carrier or its alliance partners.

Choose Siem Reap-Angkor (SAI) if

Angkor Wat is the reason for the trip, or at least the first stop on it. Landing at SAI drops you a short ride from Siem Reap town and the temple complex, which saves you a domestic flight or a long road transfer from the capital. Plenty of Americans build the classic itinerary the other way — temples first, capital and coast after — and for that shape SAI is the better entry point. You can always end the trip out of KTI; the e-Arrival Card only cares about where you land, not where you leave.

Whichever airport you settle on, the e-Arrival Card selection follows the flight, and the flight number on the card has to be the final leg that lands in Cambodia — not your US departure. If you want the whole arrival sequence at the busiest gateway laid out gate by gate, our Techo International (KTI) arrival walkthrough for US citizens covers what the terminal is actually like once you step off the plane.

Techo International (KTI) replaced the old Phnom Penh airport

This is the single detail most likely to trip up an American who booked early. On 9 September 2025, Techo International (KTI) opened and took over all international traffic from the old Phnom Penh airport. The old airport code is retired for these arrivals. If you booked your trip before September 2025, or you are working from an older guidebook or a friend's advice from a previous visit, you may still have the old code in your head — and that is the code you should not enter on the card.

The fix is to read your actual ticket. Pull up your flight confirmation for the final leg into Cambodia and look at the arrival airport. If it lands in the Phnom Penh area, it is Techo International (KTI), and KTI is what you select on the e-Arrival Card. Reputable airlines updated their systems for the switch, so a current booking will already show the new airport — but a stale screenshot, an old itinerary forwarded from a travel agent, or memory from a 2024 trip can all point at the wrong place.

Match three things and you cannot go wrong: the airport on your ticket, the port of entry you select on the e-Arrival Card, and the QR code the system hands back after you submit. When the officer scans that code at the kiosk, it should resolve to the airport you are physically standing in. Our guide to the e-Arrival QR scan at KTI Immigration for US citizens walks through what that scan looks like at the Techo counter and what the officer is actually checking.

No land borders — and how to make the card match your ticket

One option you will not be using: an overland crossing. All seven Thailand-Cambodia land borders have been closed since June 2025, so essentially every American reaches Cambodia by air. That simplifies the port-of-entry field considerably — it is always one of the three airports, never a road or river crossing. If you had pictured flying into Bangkok and busing across to Siem Reap, that route is off the table for now, and your port of entry will be whichever Cambodian airport your final flight lands at.

With the airport settled, making the card match your ticket is mechanical. Open your flight confirmation for the final leg into Cambodia. Read the arrival airport — KTI, SAI, or KOS. Select that exact airport from the port-of-entry list on the card. Then check that the flight number on the card is the same final leg, because Immigration cross-references the airport and the flight together. Americans almost always connect through Bangkok, Singapore, Seoul, Tokyo, or Doha, so the leg that matters is the short final hop into Cambodia, and the airport on the card should be where that hop lands.

A 20-second sanity check before you submit: does the port of entry on the card name the same airport printed on your final-leg ticket? Does the flight number on the card belong to that same leg? If both answers are yes, the port-of-entry section is clean and there is nothing here for the kiosk to flag. If your ticket shows one airport and you selected another, fix it now — that is a mismatch you created on the form, and it is the easiest one in the whole card to avoid.

If you are weighing routings into Cambodia and want the full map of which airports the eVisa actually covers, the eligible-entry-points breakdown linked above lays out every valid port so you can confirm your booking lands somewhere the visa is honored before you commit.

提交前汇总

入国港の項目は、選択としてではなく記録として扱えば、電子入国カードで最も簡単な項目の1つです。選択は予約の時に既に行われています：プノンペン近郊のKTIは首都優先の旅やビジネスに適し、SAIはアンコール・ワットが最初の訪問地の場合、KOSは海岸沿いです。カードは単に最終便が着陸する場所を記録するだけで、フォームでのあなたの任务是便に見合う空港を選択し、その便のフライト番号がその区間に属することを確認することです。

旅行全体を正しく順序付けてください。米市民のカンボジアビザはeVisaから始めます — 最初の大ステップで、数週間前に済ませるものです — 観光$80 USDまたはビジネス$90 USDで、どちらも3〜5日で承認され、メールで印刷可能なPDFとして届きます。電子入国カードは軽い最後のステップで、飛行の7日以内に提出し、入国港はその14項目の1つです。まだビザを申請していない場合は、今すぐ始めて便が予約できたら電子入国カードに戻ってください。

When you file a verified e-Arrival Card through us for $20 USD, it is checked end-to-end before it reaches Cambodian Immigration — the port of entry against your final-leg ticket, the flight number against the manifest, and the date format that catches so many Americans. If a field is off, we catch it before it becomes a kiosk problem, and if Immigration flags a correction there is no extra charge to fix it.

次のステップとアメリカ人旅行者のための関連資料：便が確定したらverified電子入国カードを提出し、すべての画面を見たい場合はアメリカ人向けのステップバイステップ電子入国カード walkthroughに従い、Techo Internationalの実際の様子を知りたい場合はKTI入国 walkthroughを読み、まだビザが必要な場合はカンボジアeVisaを申請してください。